<div class="document"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">注：* 为必填项</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><strong><span style="color: #0093e6;">请在报名阶段填写 ↓</span></strong></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 1、项目功能介绍</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #000000; font-size: 14px;">这是一款基于INA237的彩屏XT60电流表，具有85V@60A宽电压电流测量范围，能够轻松串入高电压场景测量电路中流过电压电流情况。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #34495e; font-size: 14px;">注：主题不限，可以是解决生活/工作中的某个问题、为某个人群/场景设计的方案、毕业设计/课程设计/DIY项目/纯属炫酷项目等。主要讲一下自己通过什么手段解决了什么问题。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*2、项目属性</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">项目首次公开，原创设计，未在其它比赛获奖，未参加过答辩。<br>注：本设计参考了FrostAutumn/霜秋凛然的 <a href="https://oshwhub.com/frostautumn/frme-pm-01a-ky" target="_blank">FRME 彩屏电流表 功率计 双XT60接口 - 立创开源硬件平台</a> 项目，具体内容为PCB外形、元器件布局，除此之外元器件选型、硬件软件设计均由本人独立完成。</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">注：请说明项目是否首次公开；项目是否为原创；项目是否曾经在其他比赛中获奖，若有获奖则叙述获奖详情；项目是否在学校参加过答辩。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 3、开源协议</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">CC BY-NC-SA 3.0</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">注：利他即利己，请认真阅读下述内容。</span></p> <ol style="line-height: 1.8;"> <li class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-hanging-indent-1.6em" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">拥抱开源，赋予项目无限价值。建议项目核心功能开源80%以上；</span></li> <li class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-hanging-indent-1.6em" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">2、若某一部分功能不可替代且删掉之后项目无法解决对应的问题，则这一部分实现的功能就是项目的核心功能；比如设计了一台电子负载且设计了一款上位机软件监控功率变化，则电子负载为核心功能，上位机软件为辅助功能；比如电子负载中使用了一款隔离485模块与上位机通信，则此485模块实现的通讯功能为辅助功能； </span></li> <li class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-hanging-indent-1.6em" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">项目应选择适合自己的<span style="text-decoration: underline;"><a href="/posts/98fdb2accd754af7b51990790db3b47a" target="_blank">开源协议</a></span>，若项目引用其他开源项目，应注明来源并遵循原作者的开源协议规定；原创项目推荐使用GPL3.0开源协议；</span></li> <li class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-hanging-indent-1.6em" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">直接引用开源项目的原电路或原代码实现的功能不可作为自己项目的核心功能、使用市场上通用模块直接实现的功能不可作为自己项目的核心功能。</span></li> </ol> <p style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><strong><span style="color: #0093e6;">请在竞赛阶段填写 ↓</span></strong></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*4、硬件部分</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><strong><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">本项目设计了一款XT60电流表，主控为瑞萨</span></strong><span style="color: #202d40; font-family: Microsoft YaHei, 微软雅黑, 宋体, Arial Narrow, HELVETICA;"><strong>R7FA2E1A72DFL，电流感应放大器为德州仪器INA237，降压DCDC为芯源MP9486，同时配备了一块1.47寸tft屏幕显示信息。</strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">一、主控<br><img src="//image.lceda.cn/pullimage/CzZkI7XGbV2nBGPxx2jV8wFKeByObuuvwwlzRJaZ.png" alt="" width="1000" height="369"><br>图1  主控部分电路</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">主控为瑞萨</span><span style="color: #202d40; font-family: Microsoft YaHei, 微软雅黑, 宋体, Arial Narrow, HELVETICA;">R7FA2E1A72DFL，使用了一组I2C与一组SPI。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">二、电流感应放大器<br><img src="//image.lceda.cn/pullimage/xyryVz4DYVqMkn6R6sgy7KAKjzoS0iYjbEfmTnuI.png" alt="" width="1000" height="430"><br><br></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">图2  </span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">电流感应放大器</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">部分电路</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">电流感应放大器</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">为德州仪器</span><span style="color: #202d40; font-family: Microsoft YaHei, 微软雅黑, 宋体, Arial Narrow, HELVETICA;">INA237，耐压85V；采样电阻封装5930阻值1mR功率5W，可通过60A电流。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">三、降压DCDC<br><img src="//image.lceda.cn/pullimage/0hhZv8eeDcjmEN1IxxtTn8oQebheUG68jxxHG57i.png" alt="" width="1000" height="424"><br></span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">图3  </span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">降压DCDC</span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">部分电路</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">降压DCDC为芯源MP9486，输入电压范围4.5-100V。</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">在本项目中设计注意要点如下：<br>1.输入电容部分，采用50V耐压电容串联，在较低成本下解决了高耐压问题；<br>2.电感部分，参考规格书（</span><a href="https://atta.szlcsc.com/upload/public/pdf/source/20240918/5AD8A1A0D9C2859F32750FF2CC514AFA.pdf" target="_blank">5AD8A1A0D9C2859F32750FF2CC514AFA.pdf</a><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">）可知，此电感可以承受100V  60s，为防止可能存在的</span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">SW尖峰，故串联电感提高耐压；<br><img src="//image.lceda.cn/pullimage/KPTZaNCIFwLCfeNyCz2hVw9wgm4MfoPCxpOuJBeC.png" alt="" width="1000" height="134"><br></span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">图4  电感（部分）特性规格书</span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;"><br>3.电感感量计算：L=[(Vin_Max-Vout)*Vout]/(Fsw*ΔIL*Vin_Max)，取输入电压85V，输出电压3.3V，开关频率300kHZ，纹波电流0.3A，解得L≈33μh，取两22</span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">μh串联即44</span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">μH；<br>4.输入电容容值计算：</span></p> <span class="base" style="font-family: KaT t-variant-alt t-variation-s d-color: #ffffff;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">Cin</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span><span class="mrel" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">≥</span></span><span class="base" style="font-family: KaT t-variant-alt t-variation-s d-color: #ffffff;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mfrac" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 1.3603em;"><span style="font: inh : relative; top: -2.314em;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: inline-block;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">f</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">S</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">W</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span><span class="mbin" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">×</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">Δ</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">V</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">I</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">N</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span><span class="mbin" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">×</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">V</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">I</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">N</span><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px 0.02778em 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">_</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">M</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">I</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">N</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span></span></span><span style="font: inh : relative; top: -3.677em;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: inline-block;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">I</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">O</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">U</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">T</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span><span class="mbin" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">×</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">V</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">O</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">U</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">T</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span><span class="mbin" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">×</span></span><span class="base" style="font-family: KaT t-variant-alt t-variation-s d-color: #ffffff;"><span class="minner" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mopen delimcenter" style="font: inh : relative; top: 0em;"><span class="delimsizing size3" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">(</span></span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">1</span><span class="mbin" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">−</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mfrac" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 1.3603em;"><span style="font: inh : relative; top: -2.314em;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: inline-block;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">V</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">I</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">N</span><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px 0.02778em 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">_</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">M</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">I</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">N</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span></span></span><span style="font: inh : relative; top: -3.677em;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: inline-block;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">V</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">O</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">U</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">T</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span><span class="mclose delimcenter" style="font: inh : relative; top: 0em;"><span class="delimsizing size3" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">)，</span></span></span></span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">取输入电压5V，输出电流1A，输出电压3.3V，开关频率300kHZ，输入纹波500mV，</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">解得</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">Cin≈1.3μF，取三组1</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">μF电容串联共1.5</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">μF；额外添加</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">1</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">00nF电容串滤除高频噪声；请注意，如情况允许，高压输入请串联理想二极管或防打火模块，同时输入级可串联100UF/100V电解电容降低输入纹波；</span></div> <div class="document"><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">4.输入电容容值计算：</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;"><br></span></div> <div class="document"><span class="base" style="font-family: KaT t-variant-alt t-variation-s d-color: #ffffff;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">C</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">O</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">U</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">T</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span><span class="mrel" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">≥</span></span><span class="base" style="font-family: KaT t-variant-alt t-variation-s d-color: #ffffff;"><span class="mord" style="font: inherit; scrollbar-color: rgba(0, 0, 0, 0.25) rgba(0, 0, 0, 0); margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mfrac" style="font: inherit; scrollbar-color: rgba(0, 0, 0, 0.25) rgba(0, 0, 0, 0); margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: rgba(0, 0, 0, 0.25) rgba(0, 0, 0, 0); margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 1.3603em;"><span style="font: inh : relative; top: -2.314em;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: inline-block;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">8</span><span class="mbin" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">×</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">f</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">S</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">W</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span><span class="mbin" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">×</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">Δ</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">V</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mtight" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">O</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">U</span><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">T</span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span></span></span><span style="font: inh : relative; top: -3.677em;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: inline-block;"><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;">Δ</span><span class="mord" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline;"><span class="mord mathnormal" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">I</span><span class="msupsub" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; text-align: left;"><span class="vlist-t vlist-t2" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px -2px 0px 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; border-collapse: collapse; display: inline-table; table-layout: fixed;"><span class="vlist-r" style="font: inherit; scrollbar-color: transparent transparent; margin: 0px; padding: 0px; border: 0px currentcolor; vertical-align: baseline; display: table-row;"><span class="vlist" style="font: inh : relative; height: 0.3283em;"><span style="font: inh : relative; top: -2.55em;"><span class="sizing reset-size6 size3 mtight" style="font-family: inh t-size: 0.7em; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; display: inline-block;"><span class="mord mathnormal mtight" style="font-family: KaT t-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: inherit; line-height: inherit; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;">L</span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span></span></span></span><span class="vlist-s" style="font-family: inh t-siz t-variation-settings: inherit; vertical-align: bottom; display: table-cell; min-width: 2px; width: 2px;">​</span></span></span></span></span></span></div> <div class="document"><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">取</span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">纹波电压50mV，</span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">开关频率300kHZ，</span><span style="background-color: #ffffff; color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA;">纹波电流0.3A，</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">解得</span><span style="color: #202d40; font-family: 'Microsoft YaHei', 微软雅黑, 宋体, 'Arial Narrow', HELVETICA; background-color: #ffffff;">Cout≈2.5μF，请注意，输出额外需要一颗内阻100-200mR电容以维持内部自激振荡，否则会出现</span><span style="color: #202d40; font-family: Microsoft YaHei, 微软雅黑, 宋体, Arial Narrow, HELVETICA;">环路打隔、频率漂移等现象（类似AMS1117）;</span></div> <div class="document"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;"> 注：请前往<span style="text-decoration: underline;"><a href="https://lceda.cn/editor" target="_blank">嘉立创EDA</a> </span>生成/上传设计文件，文件完成后，相关文稿将自动生成至项目详情；这里可以详细说明您的项目实现原理和机制、注意事项、调试方法、测试方法等。推荐图文并茂的形式向别人介绍您的想法。 </span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*5、软件部分</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">请输入内容…</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">注：若您的项目涉及软件开发，请在附件上传对应的工程源码。这里可以详细说明您的软件流程图、功能模块框图、相关算法的解释或科普、源码结构、编译环境的搭建和配置、源码编译方法、程序烧录方法等。推荐图文并茂的形式向别人介绍您的想法。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*6、BOM清单</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">请输入内容…</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">注：项目涉及的BOM清单。在<span style="text-decoration: underline;"><a href="https://lceda.cn/editor" target="_blank">嘉立创EDA</a> </span>生成/上传设计文件后，BOM将自动生成至项目详情；建议包括型号、品牌、名称、封装、采购渠道、用途等内容。具体内容和形式应以表达清楚项目构成为准。 </span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*7、大赛LOGO验证</h3> <hr class="horizontal-splitline normal-bold-2"> <p style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">请上传包含大赛logo的项目图片，logo以丝印形式印刷在PCB上面。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">点击zip下载大赛logo标识！ <span style="text-decoration: underline;"><a href="https://image.lceda.cn/easyedaResource/images/d1bbfd69f9404f56901a0e7b849b7245.rar" target="_blank">（大赛标识）.zip</a></span></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 8、演示您的项目并录制成视频上传</h3> <hr class="horizontal-splitline normal-bold-2"> <p style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">视频要求：请横屏拍摄，分辨率不低于1280×720，格式Mp4/Mov，单个视频大小限100M内；</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">视频标题：立创电赛：{项目名称}-{视频模块名称}；如立创电赛：《自动驾驶》-团队介绍。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 14px;"><a href="/posts/42551e8f2f2548cabc1c36626a42da94" target="_blank">前往查看更多详情 ＞</a></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> </div>