<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;"> </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;"> </p> <p>由于传统数字可调电源体积太大且需要插市电，出差携带很不方便，于是便自己制作了一款便携式数字可调电源。大小类似手机充电宝，内置锂电池能自供电，还能调整输出的电压电流。</p> <p>便携式可调直流电源主要有以下特性：</p> <ol> <li>输出电压0.70V-22.00V连续可调，实测最大纹波为100mV(22V输出)。</li> <li>输出电流0.001A-2.000A连续可调，输出超过设定电流自动切换为恒流模式输出(正常为恒压模式输出)。</li> <li>显示屏亮度五级可调，实时显示电压、电流、功率等信息。</li> <li>四个实体按键，可对输出电压、电流、背光、输出开关进行设置。</li> <li>充电接口为TPYEC接口，最大充电电流1.5A，支持边冲边放。</li> <li>输出接口为按压式接线端子，方便接线。</li> <li>实测待机功耗为0.5mA，配合8000mAh电池，理论上待机时间可达1.8年。</li> </ol> <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;"> </p> <p>项目于去年首次开源在Gitee平台，这次主要在原有开源项目的基础上做了以下优化：</p> <p>    1. MCU由STM32L051K8U6更换为GD32E230K8U6，更换之后货源和价格可以保障。</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;">    2. 相关程序重构为GD32E230K8U6程序，优化操作响应时间。</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;">    3. 相关电源电路优化。</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;">项目所有资料均Gitee均已同步更新，地址为：<a href="https://gitee.com/lv_tong/Portable-Variable-DC-Power-Supply" target="_blank">https://gitee.com/lv_tong/Portable-Variable-DC-Power-Supply</a></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;"> </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;">    1. 开源协议采用GPL-3.0协议。</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;">    2. 开源的部分：电路板(原理图和PCB)、嵌入式程序(HEX文件及部分程序代码)、锂电池型号、液晶屏型号、外壳结构件。</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;"> </p> <p>硬件主要由电路板、液晶屏、锂电池、3D打印外壳和若干螺丝螺柱构成。</p> <p> </p> <p><strong>电路板：</strong></p> <p><strong><img src="//image.lceda.cn/pullimage/nmepYljx45uLo3gNCJqfAHebP8OkAqgdm79rZjPz.png" alt="" width="1315" height="879"></strong></p> <p><strong>    </strong></p> <p><strong><img src="//image.lceda.cn/pullimage/d8FlNPUOurue4ZS3VPXQb1G6a8PEXaT53bO0TpeQ.png" alt="" width="1196" height="801"></strong></p> <p> </p> <p><img src="//image.lceda.cn/pullimage/uL0OT5sKQ6lPUDf77x3Sb87rPshej8WGliO9GlIK.jpeg" alt="" width="766" height="447"></p> <p>      </p> <p><img src="//image.lceda.cn/pullimage/BbV37btB2B8naddJSG8PxQ8FL7AuxYc86CzTbmKS.jpeg" alt="" width="765" height="446"></p> <p> </p> <p><strong>液晶屏：</strong></p> <p>屏幕模组为单色点阵液晶，分辨率为128*64，主要分为两个部分：<a href="https://item.taobao.com/item.htm?spm=a1z0d.6639537/tb.1997196601.12.5d797484zi6yE6&id=526993827339" target="_blank">液晶屏</a>和<a href="https://item.taobao.com/item.htm?spm=a1z0d.6639537/tb.1997196601.4.5d797484zi6yE6&id=527041765378" target="_blank">背光板</a>。</p> <p>因不同液晶屏的接口方式、驱动程序或有不同，目前硬件及程序只支持当前液晶屏，其他液晶屏大概率不能支持，所以尽量选择同款液晶。</p> <p> </p> <p><strong>锂电池：</strong></p> <p>我所选用的<a href="https://item.taobao.com/item.htm?spm=a1z0d.6639537/tb.1997196601.4.5d79748464YyJW&id=584138757387" target="_blank">锂电池</a>容量为8000MAh，尺寸为100mm×60mm×9mm(长×宽×厚)。也可使用其他锂电池，尺寸符合上述要求即可。</p> <p> </p> <p><strong>外壳：</strong></p> <p>外壳模型文件放在<a href="https://gitee.com/lv_tong/Portable-Variable-DC-Power-Supply/tree/master/3.Model" target="_blank">Model</a>文件夹里，分为上下两部分，可使用3D打印机制造，这里不在赘述。</p> <p> </p> <p><strong>螺丝及螺柱：</strong></p> <p>螺丝：M3×5(4个)、M3×9(4个)</p> <p>螺柱：M3×12(4个)</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> <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;"><strong>安装说明：</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 pap-left-indent-1.6em" style="line-height: 1.8;"><strong><img src="//image.lceda.cn/pullimage/tqMUdjenWcMsCEr1P52U6JhR9kgHX9iD1mM1Hd9g.gif" alt="" width="640" height="360"></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 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;"> </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;">只开源HEX文件及部分程序代码。</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;">开源的程序包含：液晶屏驱动程序(lcd.c/lcd.h)、电量计量芯片驱动程序(cw2015.c/cw2015.h)、DCDC升压降压芯片驱动程序(sc8721.c/sc8721.h)。</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;"> </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;">    1. 主电路板*1</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;">    2. 液晶屏及背光板*1</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;">    3. 8000MAh锂电池*1</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;">    4. 外壳盖板*1  外壳背板*1  面板贴*1</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;">    5. 螺丝：M3×5(4个)、M3×9(4个)</p> <p>    6. 螺柱：M3×12(4个)</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 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;"><img src="//image.lceda.cn/pullimage/ShuVbsglW5FxQWlGXv618ec4JgNAE7xAbdDaBpzO.jpeg" alt="PCB背面" width="793" height="595"></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;">按键及屏幕：</p> <p style="line-height: 1.8;"><img src="//image.lceda.cn/pullimage/mTaf7DAGRLfQz2v4KDjbCqsUsOEqiXgzsMe5FuVP.jpeg" alt="" width="796" height="359"></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;">视频介绍：<a href="https://www.bilibili.com/video/BV1dV4y1T732/" target="_blank">https://www.bilibili.com/video/BV1dV4y1T732/</a></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>