<div class="document"> <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;"><span style="font-size:14px;">启英泰伦离线语音模块控制蓝牙功放开关、led台灯亮灭（其他功能待定）。蓝牙功放部分当电脑音响用。音响部分分为高低音。</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;"><span style="color:#000000;"><span style="font-size:14px;">蓝牙采用<span style="color:#ffffff;">TB上</span>现成模块M18，功放采用ST TDA7269A、TI LM1877、PTC PT2308，前级分频采用TI OPA1678。</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;"><span style="color:#000000;"><span style="font-size:14px;">右声道底噪莫名很大，尤其是LM1877的右声道输出，左声道没底噪<span style="color:#000000;">（<span style="color:#ffffff;">反正我是听不出来</span>😂），好像是地干扰？</span></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;"><span style="color:#bfedd2;"><span style="font-size:14px;"><span style="color:#000000;"><span style="color:#e03e2d;">板子有一些奇奇怪怪的问题</span>，调试也没调试出啥（</span><span style="color:#ffffff;">我一个学化学的，电子方面懂个屁</span><span style="color:#000000;">）</span></span></span></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;"><span style="color:#000000;font-size:14px;">首次公开，为原创。</span></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:#000000;font-size:14px;">GPL3.0开源协议</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;">*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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="color:#e03e2d;font-size:24px;"><strong>*原理图中打红叉的部分为弃用部分</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 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>电源：</strong><span style="color:#ffffff;">TB上</span>8块多买的开关电源，还带短路保护 <img src="//image.lceda.cn/pullimage/QoUBX0LgVTt9So1iTUyd9Ar3OowfQV2fSggUuad9.png" alt="" width="35" height="35"></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;"><img src="//image.lceda.cn/pullimage/FAOjLQuPZCUnRbcbUt4pMNjMzLBohPKAx1W8Hzso.jpeg" alt="" width="866" height="536"></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;">，电源输入端因用16V自恢复保险丝，部分电容采用额定电压16V，<span style="color:#e03e2d;font-size:18px;"><strong>如若DIY该项目，建议电源选用10~16V DC 60W以上的。</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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="color:#000000;font-size:16px;">负电源部分：采用TI LM2776，上面的焊盘焊上，芯片工作。</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;"><span style="color:#000000;font-size:16px;"><img src="//image.lceda.cn/pullimage/iNyjM9qTT47L0G3dmd0yxbtOdfBJWB6O619L91pT.jpeg" alt="" width="839" height="531"></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> <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;"><span style="font-size:18px;"><strong>开关：</strong><span style="color:#e03e2d;"><span style="font-size:16px;">右侧选择信号输入的开关没用，<span style="color:#000000;">打哪边蓝牙输出都能到喇叭，但打到有线侧时耳机输出无噪音，无线侧耳机噪音比音乐声还大；左侧开关有效</span></span></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 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;"><span style="font-size:18px;"><strong>前级分频器：</strong></span>采用一阶低通 / 高通 有源滤波器，好像效果不太好？</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;"><img src="//image.lceda.cn/pullimage/ZlxHqGzyygxiBwdrmnGwiHqubEho0FQWz9ngNkCx.jpeg" alt="" width="1200" height="520"></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;">准备下次换成三阶Butterworth滤波器试试。L+、R+两个孔用于接电平灯。电平灯见➡<a href="/incognito/ji-yuxd3915-di-yin-le-dian-ping-zhi-shi-deng" target="_blank">基于XD3915的音乐电平指示灯 - 立创EDA开源硬件平台 (oshwhub.com)</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 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><span style="font-size:18px;">功放部分：</span></strong><span style="font-size:16px;"> 全部均采用AB类芯片</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;"><strong><span style="font-size:18px;">1. <img src="//image.lceda.cn/pullimage/eDqG18yu2P60egfPDsV6dxPtR6D1GCMJvV3ao4OE.jpeg" alt="" width="1102" height="303"></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:16px;">该电路为左侧耳机用的，若嫌音量不够大，可改变R13/R14、R17/R15比值，值越大，音量越大（<span style="color:#ecf0f1;">我觉的这个放大倍数刚好</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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="color:#e03e2d;"><strong><span style="font-size:16px;">*两个焊盘都不用连，C25用10uF的也没啥问题</span></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 pap-left-indent-1.6em" style="line-height:1.8;"><strong><span style="font-size:18px;">2.</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 pap-left-indent-1.6em" style="line-height:1.8;"><strong><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/AlD8ij0bnMjSuq5zvpmRNAOP6nYxp1QekLaRpxSP.jpeg" alt="" width="1200" height="446"></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 pap-left-indent-1.6em" style="line-height:1.8;"><strong><span style="font-size:18px;"><span style="font-size:16px;">嫌音量不够大，可改变R44/R45、R47/R46比值，值越大，音量越大</span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;">喇叭<span style="color:#ffffff;">TB上<span style="color:#000000;">四寸10几块一个的，低音效果不错</span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">mute脚直接飞线接到R43 GND_A1焊盘上</span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><strong><span style="font-size:18px;color:#e03e2d;"><span style="font-size:16px;">C49、C52最好额定电压>50V的</span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;"><img src="//image.lceda.cn/pullimage/9bOt7vIxJqOugfLxZHrdBZ05z04phNwMlRXasfAg.jpeg" alt="" width="617" height="463"></span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><strong><span style="font-size:18px;">3.</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 pap-left-indent-1.6em" style="line-height:1.8;"><strong><span style="font-size:18px;"><img src="//image.lceda.cn/pullimage/WqcXPBJNBmbhzQbzPduKjH9Ai0gIM78PEAlE7G15.jpeg" alt="" width="1200" height="517"></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 pap-left-indent-1.6em" style="line-height:1.8;"><strong><span style="font-size:18px;"><span style="font-size:16px;">嫌音量不够大，可改变R68/R69、R73/R74比值，值越大，音量越大</span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;">喇叭<span style="color:#ffffff;">TB上<span style="color:#000000;">两寸几块一个的，一般</span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;"><img src="//image.lceda.cn/pullimage/mEtNwGcnIYb58oqgpPn5mcgaKu5u3nLOf82tNmyZ.jpeg" alt="" width="282" height="211"></span></span></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 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;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;"><strong><span style="font-size:18px;">其他：</span></strong></span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">           <strong>散热：</strong>LM1877上的散热片用水泥硅脂粘上去的</span></span></span></span></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;"><img src="//image.lceda.cn/pullimage/g6tdsHeXnMcf6zDBbVfb6YU9Ct6khSk4ivFt08tz.jpeg" alt="" width="487" height="365"><img src="//image.lceda.cn/pullimage/NGRMg3WaHFEuDAweQWMa90BgusVLEUQ5xYrjlr56.jpeg" alt="" width="491" height="368"></h3> <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;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">                      要用风扇的话，建议选个劲小点的，用的劲太大了，风扇声有亿点大，这我选的➡<a href="https://item.szlcsc.com/777832.html" target="_blank">SF6010SM12_（SHENG FENG(胜丰宏)）SF6010SM12中文资料_价格_PDF手册-立创电子商城 (szlcsc.com)</a></span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">           <strong>电位器：</strong>左侧两个逆时针音量减小，右侧两个顺时针音量减小</span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">           <strong>外壳与板子的连接：</strong></span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">外壳采用铝基板，换成PCB板加</span></span></span></span><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">个RGB灯配合着风扇好像也不错<img src="//image.lceda.cn/pullimage/lXAiDIMNnCDQi8YLIfh1edC4bnXwSebOVkFv2UYb.jpeg" alt="" width="140" height="102"></span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;"><strong><img src="//image.lceda.cn/pullimage/oQwpZso6ET9vpeo0CkrHrdNW5dxN882ZAasopnKK.jpeg" alt="" width="646" height="861"></strong></span></span></span></span><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;"><img src="//image.lceda.cn/pullimage/Y0upI1lTXJD8KYncQLUwXB3SQU4GzbMl5aXtVUqB.jpeg" alt="" width="680" height="378"></span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">M3铜柱，依次为35+6、5+6、4+6，风扇固定采用M2 11双通铜柱+6mm平头螺丝+M3螺丝垫片</span></span></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 pap-left-indent-1.6em" style="line-height:1.8;"><span style="font-size:18px;"><span style="font-size:16px;"><span style="color:#ffffff;"><span style="color:#000000;">           两个板子连接最终采用PHD2.0双排线 </span></span></span></span></p> <table class="image-preview-container"><tr class="row"><td class="description description-link"><span class="source-link">https://img.alicdn.com/imgextra/i2/2206622153362/O…Y0R1ahqBIChDpU_!!2206622153362.jpg_430x430q90.jpg</span></td> </tr></table><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;"> </h3> <table class="image-preview-container"><tr class="row"><td class="description description-link"><span class="source-link">https://img.alicdn.com/imgextra/i1/2206622153362/O…7sc1ahqBJmjW4i_!!2206622153362.jpg_430x430q90.jpg</span></td> </tr></table><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;"> </h3> <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;">启英泰伦官方的开发方式还没搞懂，据说天问Block（图形化编程）里选这个板子<img src="//image.lceda.cn/pullimage/Ta3ekPEyicU6Auv2Lf5NLc2pw6pyRrHU100UgHt4.jpeg" alt="" width="179" height="206">可以凎Ci1122这个芯片？</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/FraI4rnZ7j8KznktHuBCjL2Oe0TYG11R69rayhtf.png" alt="" width="418" height="527"></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;">软件部分还没做好（<span style="color:#ffffff;">还不是因为菜</span>）</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;">BOM见原理图上所标注的（系统自动生成的不对<span style="color:#ffffff;">，懒得改了<span style="color:#000000;">）</span></span></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;">板子上忘画了，看这个3D渲染图吧（看着比我焊的好看多了）</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/J6VnDJngAlasn8TSeR30VNOnHRadP9H5c5McIcTU.jpeg" alt="" width="1076" height="1010"></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> <p>（视频录制：Mate20）</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>