# 基於 UC3842 的開源 24V3A 返馳式電源供應器，附變壓器參數計算 **URL:** \ **Category:** 开源项目 / Open-Source Project\ **Tags:** Power, Flyback, Hardware, Open-Source\ **Created:** [2025 年11 月 3 日 11:24 UTC](https://bbs.eeclub.top/t/topic/164 "2025-11-03T11:24:56Z")\ **Posts on this page:** 1\ **Page:** 1
作者： ![zeruns](https://bbs.eeclub.top/user_avatar/bbs.eeclub.top/zeruns/32/7_2.png) [@zeruns](https://bbs.eeclub.top/u/zeruns)\ 发布日期： [2025 年11 月 3 日 11:24 UTC](https://bbs.eeclub.top/t/topic/164/1 "2025-11-03T11:24:56Z")
**开源一个宽输入电压、24V 3A输出的反激式开关电源。该72瓦设计实现了87.4%的峰值效率，基于UC3842控制器芯片并采用同步整流（UCC24612-1DB）。包含完整的电路和变压器参数计算过程、原理图、PCB设计、PSIM仿真模型、变压器制造规格等。** ## 前言 📍这是我首次设计反激式电源，欢迎各位专家提出反馈或改进建议。 - **反激式电源参数计算与元件选型、反激变压器计算与绕制教程：** [https://blog.zeruns.com/archives/909.html](https://blog.zeruns.com/archives/909.html) - 磁性元件/磁芯材料/磁芯结构分析、对比与选型指南： [https://blog.zeruns.com/archives/897.html](https://blog.zeruns.com/archives/897.html) 🚀顺便一提，我目前正在找工作。如广州、佛山或深圳的雇主有招聘需求，欢迎联系。可在我的OSHWHub主页查看开源项目： [https://oshwhub.com/zeruns/works](https://oshwhub.com/zeruns/works) **项目演示视频与设计过程视频：** [https://www.bilibili.com/video/BV1ES4GzQE19/](https://www.bilibili.com/video/BV1ES4GzQE19/) **OSHWHub开源链接：** [https://oshwhub.com/zeruns/24v3a-Flyback-Power-Supply-uc384x](https://oshwhub.com/zeruns/24v3a-Flyback-Power-Supply-uc384x) **电子/MCU技术讨论QQ群：[2169025065](https://qm.qq.com/q/haWR2WfhIc)** **下载链接在文章末尾！** **警告：制作开关电源存在危险。本人不对本设计中的任何电路、参数或公式正确性负责。若您复制或参考本项目，需自行承担所有潜在风险。** 小批量（20套）的预估平均成本约为25元（不含PCB和变压器，元件价格来自[立创商城](https://activity.szlcsc.com/invite/D03E5B9CEAAE70A4.html)）。包含PCB和变压器的总成本不应超过50元。 * * * ## 设计参数 | 参数 | 数值 | | --- | --- | | 额定输入电压 V\_{acnom} | 220VAC | | 最小输入电压 V\_{acmin} | 85VAC | | 最大输入电压 V\_{acmax} | 265VAC | | 电网频率 f\_L | 50Hz | | 输出电压 V\_{out} | 24V | | 输出电流 I\_{out} | 3A | | 工作频率 f\_s | 150kHz | | 目标效率 η | 85% | PCB尺寸：100x55mm PCB规格：双层板，顶层为通孔元件，底层为贴片元件。 * * * ## 实物照片 下图显示的是第二版。 ![](https://s3.eeclub.top/original/1X/d44c65cec9229f1a5786ef669e1614290f545741.webp) 下图显示的是第一版，存在一些问题且容易烧毁MOS管。这些问题已在上图第二版中修复。 ![](https://s3.eeclub.top/original/1X/bc3df82d55ce2a70864e3196c47cd84538c7f86e.webp) 高频变压器： ![](https://s3.eeclub.top/original/1X/e75e2310a4e88664747d13945fe5b5dc4250a12d.webp) ![](https://s3.eeclub.top/original/1X/6d5af910f158d969b0f3f880968c628eb8fadd6b.webp) * * * ## 功能测试与性能测量 ### 初次上电测试 初次上电测试时，建议串联一个灯泡以防止短路导致整套元件烧毁。测试确认输出正常，输出电压为24.1V（下图显示0.9A负载测试）。 > **串联灯泡的目的** 是利用其 **限流保护作用** 。正常情况下，灯泡电阻较小，电压降低，灯泡微亮或熄灭，不影响电源测试；若电源内部短路，回路电流骤增，灯泡固定电阻将承担大部分电压降，限制过电流，避免电源元件因大电流烧毁。 电源维修与保护插座： [https://s.click.taobao.com/OiMyz3q](https://s.click.taobao.com/t?e=m%3D2%26s%3DvfMAgTUnD1Bw4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq2vj8eDM%2F%2Bop70JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMA7DPIGbfLgHg56ZoUzm0cdkhUSIdDrY3ktWAKfhx9%2FCLZz2VyWhvCA5AfabaQkDItPgLggIv22mytrwpbDXemp5ZHngFVHS5Vf%2BOgVXz%2FdPc7M9Oryt%2FTMaM70AliNjwJcn7ARWQ6ocV0hb0k2TPv%2BG5KHOQOD12OVykg9etSUR9hToRlCxhMg8Yl7w3%2FA2kb&union_lens=lensId%3APUB%401760253213%40212b2102_1c3a_199d7447c91_84dc%40024kKVzuuExMJTxRDxkXs8vh%40eyJmbG9vcklkIjo4MDY3NCwic3BtU2l0ZSI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiwic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_16_1760253213906114794199%3Bscm%3A1007.30148.329090.pub_search-item_bfd2f9ee-0460-461b-898f-9ec0bf88fea7_) 也可用直流输入测试。我使用60V直流输入测试，电源正常启动并输出24V。但需将启动电阻（R24+R16）从200kΩ改为100kΩ（短接其中一个）。原阻值过高导致低压无法启动。 ![](https://s3.eeclub.top/original/1X/1482bd3eed1701b2cc2b6b9f92e516a759347247.webp) ![](https://s3.eeclub.top/original/1X/ec85d23ae9474b12a28a81a32485e05b7528ff20.webp) ### 转换效率测试 **使用测试设备：** - 炬伟功率计：[https://u.jd.com/0gXabte](https://union-click.jd.com/jdc?e=618%7Cpc%7C&p=JF8BATYJK1olXwQAV1lbCE0eBV8IGloSXQcHXF9fCkITAV9MRANLAjZbERscSkAJHTdNTwcKBlMdBgABFksWAmgIGl4dXAQAXVpfFxJSXzI4ZSJ-NhxjFSM-Dg9gamZdbRtyGQBHNFJROEonA24JGloSWgAAXG5tCEwnQgEIGF8dVAUAVW5cOEsRBG4LG1odWAYBVFdtCkoWB2Y4K4WbyXJwCiM-DBBQABpuRixsI0Pc2spMYzIXC2cOCmtxI2B2C1clVkxgXhRWbCtPNQFBNysVXw15AW4ARhpJKm0HUwAZCy5tBjFqK14lXwEAV19t) - 炬伟电子负载：[https://s.click.taobao.com/DvbzQ4q](https://s.click.taobao.com/t?e=m%3D2%26s%3Dx9IIV5Fur5dw4vFB6t2Z2ueEDrYVVa64YUrQeSeIhnK53hKxp7mNFuhCZFSw9yq2bAGgweDFMX30JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAg%2F%2BKki1%2BhSwjzM0u7yYFIP1SarTXhIOTsgIpc1WFZiJNubylQlnZt66YQGgzEBNyI59gdRozFAA3hUnh2EPZ5W717iz7sgAIW08eGykb4i8t9mRWD9Q0VBJVUP%2B7TpASkZn3A9FxdX4F%2B6qWNoTfGk3O4wtQ3K907WWdofAa7QHD3INma5REwSGFCzYOOqAQ&union_lens=lensId%3APUB%401760211034%40213fbc80_140e_199d4c0e2b3_ea37%40024dOLhuEEMllDpzyFJRVp15%40eyJmbG9vcklkIjo4MDY3NCwic3BtU2l0ZSI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiwic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_10_1760211034892114794199%3Bscm%3A1007.30148.329090.pub_search-item_ca653d2a-e1af-47da-9427-bdb026bd0c6c_) ![](https://s3.eeclub.top/original/1X/52f40d843b26ddb426264ebc8a0044778b2ab933.webp) **实测数据：** | 输入电压 (V) | 输入电流 (A) | 输入视在功率 (W) | 输入有功功率 (W) | 输出电压 (V) | 输出电流 (A) | 输出功率 (W) | 效率 (%) | 功率因数 | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 219.85 | 0.029 | 6.38 | 2.10 | 24.13 | 0.00 | — | — | 0.33 | | 219.83 | 0.251 | 55.18 | 28.69 | 24.10 | 1.00 | 24.10 | 83.99 | 0.52 | | 219.59 | 0.438 | 96.18 | 55.78 | 24.07 | 2.00 | 48.14 | 86.30 | 0.58 | | 219.65 | 0.637 | 139.92 | 82.55 | 24.05 | 3.00 | 72.15 | **87.40** | 0.59 | | 111.55 | 0.036 | 4.02 | 1.81 | 24.13 | 0.00 | — | — | 0.45 | | 111.13 | 0.406 | 45.12 | 28.88 | 24.10 | 1.00 | 24.10 | 83.46 | 0.64 | | 110.89 | 0.753 | 83.50 | 56.78 | 24.06 | 2.00 | 48.12 | 84.75 | 0.68 | | 110.58 | 1.097 | 121.31 | 84.91 | 24.00 | 3.00 | 72.00 | 84.79 | 0.70 | **最高实测效率为87.4%** 。最低空载功耗为1.81W，略高。 以上数据采用二极管整流方式测量，未使用同步整流。这是由于所选同步整流MOSFET的导通电阻偏高，导致效率略低。可更换更优MOSFET进行测试。电压耐压需200V或更高（若在同步整流侧焊接20Ω电阻R9和2.2nF电容C8，可选用150V耐压MOSFET）。 ### 输出电压纹波测试 示波器型号为Rigol DHO914S：[https://blog.zeruns.com/archives/764.html](https://blog.zeruns.com/archives/764.html) 测试时示波器探头夹在约15cm长的输出导线上，未使用接地弹簧，也未直接跨接在输出电容两端。因此实测输出纹波可能偏高。 **空载纹波** ，峰峰值约730mV。纹波频率138.96kHz，接近开关频率。 ![](https://s3.eeclub.top/original/1X/47b58aa2de67f29631dfcc01256677ff2a87e97a.png) **3A负载纹波** ，峰峰值约562.08mV。 ![](https://s3.eeclub.top/original/1X/94e1d48f1a448288032949527530e2cff389406d.png) ### MOSFET波形 交流输入220V、输出24V带1A负载时，原边开关MOSFET的栅源极(GS)和漏源极(DS)电压波形。黄色为栅源极电压波形，蓝色为漏源极电压波形。 图中可见MOSFET关断时漏极电压尖峰最高约440V（串联了灯泡，忘记切换到直连模式，因此电源输入电压可能刚过100V，导致实测电压较低）。 ![](https://s3.eeclub.top/original/1X/a26f3765d17ab6ca938457131c88ea9b2a73ec01.png) 栅极电压波形放大图。 ![](https://s3.eeclub.top/original/1X/d5cf8f1bee6673569e45867d265cd412daa83caf.png) ### 输出整流二极管波形 60V直流输入、24V空载输出时输出整流二极管电压波形。电压尖峰最高约56V。（在二极管两端焊接20Ω电阻R9和2.2nF电容C8后，电压尖峰降至42V）。 ![](https://s3.eeclub.top/original/1X/0c2d4d35b72779eabb61ac0280d6df4beb7273a7.jpeg) 60V直流输入、24V带1A负载输出时输出整流二极管电压波形。电压尖峰最高约190V。（在二极管两端焊接20Ω电阻R9和2.2nF电容C8后，电压尖峰降至81V）。 ![](https://s3.eeclub.top/original/1X/9e201a4f03f365bc2293a76559e380367c815581.jpeg) ![](https://s3.eeclub.top/original/1X/b36c65033259e3d3d3065c7a0bd9aac8decf185f.jpeg) ### 空载启动输出电压波形 60V直流输入、24V空载输出时输出电压波形。电压从0V上升至24V耗时7毫秒。 ![](https://s3.eeclub.top/original/1X/353487dae923b18e0b6fdc054af1369b3ca898d7.jpeg) ### 热性能 **空载时电源底部热成像** 。最热点位于启动电阻，温度约60°C（环境温度约25°C）。原边MOSFET温度约48°C。 ![](https://s3.eeclub.top/original/1X/955f9fdb271140df75b1a6828819d241bd82bc68.jpeg) **3A负载时电源底部热成像** 。最热点位于原边MOSFET或RCD吸收电路电阻，温度超过88°C（环境温度约26°C）。次级整流二极管温度可能也高于60°C。 **满载时温度偏高。长期满功率运行需为原边开关管加装散热片或将热量传导至外壳！** ![](https://s3.eeclub.top/original/1X/0fcad39ab7835852cf19122e47313d842950f27d.jpeg) * * * ## 元器件购买链接 - SMD电阻器和电容器样本册：[https://s.click.taobao.com/ngH2RGq](https://s.click.taobao.com/t?e=m%3D2%26s%3Dz45%2F9IFFdmlw4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq2eIYIc2%2B1nVX0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMA5tT7Hg%2F9SMlVDPwJriP0lqQ6sZp7gNLmb4%2BNtrBbTSxkhddRxtLib13Bob2jg4XxmBaI8H9Ag5OwyY7fsts034Gu2ApPoYE%2BmrPAZ7vKp4W0zvIVVx%2BPc2%2F51BzEHetfxglKFrfPmkzgk553RHFro4%2BcFKfhGwbic0iw5qV6tCXGDF1NzTQoPw%3D%3D%5Cu0026union_lens=lensId%3APUB%401760250920%40212cf4dd_1fdc_199d7217e50_9f13%40025lACY088B0NydLJZcb6Gok%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_8_1760250920609114794199%3Bscm%3A1007.30148.329090.pub_search-item_b12c081d-e9cf-4740-ad1c-bea245752db8_) - PQ变压器铁芯和线轴：[https://s.click.taobao.com/EJtb04q](https://s.click.taobao.com/t?e=m%3D2%26s%3D%2FbJHJVF3NHlw4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq2ao3I37KLTBD0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAtMczetwjchfRre7jpFdu15ESMSIvSnZOMN7NXhFCiynzwyjGml6oB6h0szJpZutjKfx982L%2BwTpas01NxovrH6jYb5d2RMiqXG26R3VaUQpTm8vF01xms3B6Jd9pUfrR1KilmKsn0wwx9Q0GSl3XkS2rf%2BiYyOZkxg5p7bh%2BFbQ%3D%5Cu0026union_lens=lensId%3APUB%401760251200%40212cf45e_13a4_199d725c493_528d%40023UHVvIxUwrTIxGSdeGsZXw%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_10_1760251200718114794199%3Bscm%3A1007.30148.329090.pub_search-item_2ff9de68-8f5a-4976-aa42-c31531aa93fe_) - UC3842芯片：[https://s.click.taobao.com/7pfvQGq](https://s.click.taobao.com/t?e=m%3D2%26s%3DXcgEShxemq1w4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq2hKE3ILsx0bn0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAhscfsB2%2FyzZJq71CBMBeP%2F1SarTXhIOTUdDn0Cj7EhMULEti1dikJBvUuHzTydm%2BGF1eufA0w2TazvVVStbnv29%2Fp2%2FiaZxKcxZXvgTp77UPE1zPQ3p9Co%2BDKwFLEd9Q5dUsQ8NYvbjv6uDTql4WZ9OH3UZTB%2F2jIYULNg46oBA%3D%5Cu0026union_lens=lensId%3APUB%401760251423%40213ff355_0f0a_199d7292a69_9f68%40025ExHLnHM9Nb5qiwfnHOTOR%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_17_1760251423411114794199%3Bscm%3A1007.30148.329090.pub_search-item_7ef09c61-588f-49de-abc1-fa69f6b03588_) - PC817A光耦合器：[https://s.click.taobao.com/Le1X04q](https://s.click.taobao.com/t?e=m%3D2%26s%3D9hmGa4wMOMVw4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq2fDZ4V88Q8hf0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAhscfsB2%2FyzZJq71CBMBeP%2F1SarTXhIOTUdDn0Cj7EhMEX%2BjCKsIHiJZJn5Ri93CAV66m9XlxNkwgXZVrIskntzA6sTPqFj6Iaz3angoPok%2FUP6tqiKt9uJGZ9wPRcXV%2BQ%2FMlsmagC3QYRLIPMY%2BR7%2BooiHlIt7l1xiXvDf8DaRs%3D%5Cu0026union_lens=lensId%3APUB%401760251477%40212c79d8_0ed1_199d729fda0_9d91%40025c4LL3ZmynJHy54KXR05na%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_4_1760251477476114794199%3Bscm%3A1007.30148.329090.pub_search-item_fe4ce9ac-e151-45b4-b169-4fea2645bcaa_) - MSB40M整流桥：[https://s.click.taobao.com/7HqQQGq](https://s.click.taobao.com/t?e=m%3D2%26s%3DvpJPmiukD51w4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq20euSnZyGi470JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAhscfsB2%2FyzZJq71CBMBeP%2F1SarTXhIOTUdDn0Cj7EhPGXQcAPHv%2BWPgZ%2FrbMDiIoGL83Au2rjxIGJHFqfTHNEJfhqLgbxm%2BJaLU2j7fjwxJKAVF%2FjqlD3XB6Jd9pUfrR1KilmKsn0wwgrveXiKjWgUz8Z8jl%2BiX2xg5p7bh%2BFbQ%3D%5Cu0026union_lens=lensId%3APUB%401760253072%40213cf031_0e46_199d7425638_069e%40021qIU70gSFxIdpPNnSrOepT%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_2_1760253073022114794199%3Bscm%3A1007.30148.329090.pub_search-item_55f34750-a7c7-4907-8454-9f744221c472_) - SBDD10200CT二极管：[https://s.click.taobao.com/izw104q](https://s.click.taobao.com/t?e=m%3D2%26s%3DxmwFjrra499w4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq2%2B2bmcxv00z70JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAhscfsB2%2FyzZJq71CBMBeP%2F1SarTXhIOTUdDn0Cj7EhPazArh4UFDfS%2FaVf1vAgq1JPcyaGmag0MLw62SCq%2BEzF%2F6kZohhPMYw4%2BvFjZkMVmTKEtceMCEGHB6Jd9pUfrR1KilmKsn0wwmjzTurVqfbXaIQQ9f4%2FlUxg5p7bh%2BFbQ%3D%5Cu0026union_lens=lensId%3APUB%401760253119%40210592ec_0e99_199d7430af0_d3c6%40023ehwByviv1gyYhuvG7ViSY%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_1_1760253119287114794199%3Bscm%3A1007.30148.329090.pub_search-item_133a1d0b-5f5e-43f9-a6d0-b74b523b6dfb_) - UCC24612-1同步整流控制器：[https://s.click.taobao.com/K1gEQGq](https://s.click.taobao.com/t?e=m%3D2%26s%3DXrIdFuhB529w4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq2gO6Ix0rMp7T0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAVapqw0%2FmKAw56ZoUzm0cdngJMd2yjs373q5%2F6sUdbJLLjMzzDpC4mEoFtBAAoJ7gzloc90EacxPmfLlBHUcItm%2Fbpm4LReW13qUn%2BTzC4JejO9AJYjY8CXJ%2BwEVkOqHFa%2BWU4jJDHntjHUsXXM58rjLX8EKLk%2B6o%5Cu0026union_lens=lensId%3APUB%401760253463%4021053a31_0ede_199d7484a53_7c98%4002kJHOg9XbGuNj7FXybJLV3%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_1_1760253463178114794199%3Bscm%3A1007.30148.329090.pub_search-item_46677971-c17e-4bbc-8537-a1ed90d72d24_) - TL431电压基准：[https://s.click.taobao.com/DPxnz3q](https://s.click.taobao.com/t?e=m%3D2%26s%3D6FOM4YoNVdRw4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq2isazh%2F4BC0H0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAhscfsB2%2FyzZJq71CBMBeP%2F1SarTXhIOTUdDn0Cj7EhPURDGxI%2B4%2BrakePAg3XE46Ju3eQkEDmmO1tn%2B72YIOrwhCby8lNs2jbzUIpcK%2Bhqb3YBaJmPimXY%2BDKwFLEd9Q5dUsQ8NYvbhLRRkhR2eBESnjXCre2P04IYULNg46oBA%3D%5Cu0026union_lens=lensId%3APUB%401760253724%40213f4fe8_0e78_199d74c4656_deaf%4002mAZBx1pXn4lPodNgnp1L7%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_4_1760253724343114794199%3Bscm%3A1007.30148.329090.pub_search-item_73bb932c-74ef-4e50-9d9a-9f0e62453606_) - 5D-11 热敏电阻：[https://s.click.taobao.com/IsOry3q](https://s.click.taobao.com/t?e=m%3D2%26s%3DgTeSBppZolNw4vFB6t2Z2ueEDrYVVa64g3vZOarmkFi53hKxp7mNFuhCZFSw9yq27IEGAscBJNH0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAhscfsB2%2FyzZJq71CBMBeP%2F1SarTXhIOTUdDn0Cj7EhPDnSmoBjuc0iUdyJ6RZkhr4nfKNZ4cvsg5ArcefRzWW91yFU5cC5veFmvpbr9hHhNi0Oa1KOjrPnB6Jd9pUfrR1KilmKsn0wwek9leAroPcxUKN7wv5cCCxg5p7bh%2BFbQ%3D%3D&union_lens=lensId%3APUB%401760255487%40210892d3_1c8e_199d7672f8d_57d7%40024zB42ZaLy5ZNeTwyZRmAZA%40eyJmbG9vcklkIjo4MDY3NCwiic3BtQiiI6Il9wb3J0YWxfdjJfcGFnZXNfcHJvbW9fZ29vZHNfaW5kZXhfaHRtIiiwiic3JjRmxvb3JJZCI6IjgwNjc0In0ie%3BtkScm%3AselectionPlaza_site_4358_0_0_0_3_1760255487967114794199%3Bscm%3A1007.30148.329090.pub_search-item_b37341fb-612b-4a73-8a7e-2bdec62a0234_) - X2 安全电容：[https://s.click.taobao.com/vBeCPGq](https://s.click.taobao.com/t?e=m%3D2%26s%3DqcAL85i8b59w4vFB6t2Z2ueEDrYVVa64YUrQeSeIhnK53hKxp7mNFuhCZFSw9yq2WX2Pdmxa78n0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPoLmQd3n%2Fkpb3%2BAUPYJvYe3NKa7QnY5gsJBJjbzBgiFYaMsryfqQG%2BBtRMHE3IWBDapDqxmnuA0uZvj422sFtNLJS61qlbqoGP1ZwOe8PX%2F2PfIt4%2F6cKz0%2Fh8yYwtCTBq60TvbzwKU9H1UNrvY1W%2Bck%2FuprW1TdmBLeMqtJBmsqDZGL0GbiMMd6BniEC%2BBYvRykkBQ2ShtU6ZoPuR%2FRTxysYOae24fhW0&s=1&union_lens=lensId%3APUB%401760255585%4021079493_0e21_199d768ae9e_3d6e%4002o3xkfBxdlZaQ4GDNSKFWH%40eyJmbG9vcmxkIjo4MDY3NCwiY3BtQ2lkIjoiX3BvcnRhbF92Ml9wYWdlc19wcm9tb19nb29kc19pbmRleF9odG0iLCJzcmNGbG9vcklkIjoiODA2NzQifQ%3BtkScm%3AselectionPlaza_site_4358_0_0_0_1_1760255586030114794199%3Bscm%3A1007.30148.329090.pub_search-item_c0ca1e39-72ff-4c27-9fd9-2952f2dc9b88_) - Y 安全电容：[https://s.click.taobao.com/sas5PGq](https://s.click.taobao.com/t?e=m%3D2%26s%3Dgl3yq4hQVvxw4vFB6t2Z2ueEDrYVVa64YUrQeSeIhnK53hKxp7mNFuhCZFSw9yq2TegbLdCStgf0JlhLk0Jl4QTquP0kWxBLBDnvz6xo38xspWc9%2BCL4bTGF1ceZMhPo8mL8HhJ3EdVrH4ks4QyiY4z4rjZDGVMAZ0RLy3%2BnWV5PJu8xcyQnLv1SarTXhIOT%2FcbizUjsed8PTj8yEktueVtaJhM5gIUgKPo0tv5sbLiggywN43UBCy29pGOunzAH1DIVuChQh2dCxJKk3nRN%2FfShFdYOpjfQYdDt0XOR%2F6Z9axSNmgPlECbISmn3LeXAGEUHMp7PnGkhhQs2DjqgEA%3D%3D&union_lens=lensId%3APUB%401760255644%40213f4fe8_0e78_199d76993e2_47d2%40024XIBEeYVWnKmPBo5K9yD2x%40eyJmbG9vcmxkIjo4MDY3NCwiY3BtQ2lkIjoiX3BvcnRhbF92Ml9wYWdlc19wcm9tb19nb29kc19pbmRleF9odG0iLCJzcmNGbG9vcklkIjoiODA2NzQifQ%3BtkScm%3AselectionPlaza_site_4358_0_0_0_23_1760255644717114794199%3Bscm%3A1007.30148.329090.pub_search-item_06a6dc44-3e16-4853-88e0-c6dc00b2d1f6_) 建议从[LCSC](https://activity.szlcsc.com/invite/D03E5B9CEAAE70A4.html)购买元件：[https://activity.szlcsc.com/invite/D03E5B9CEAAE70A4.html](https://activity.szlcsc.com/invite/D03E5B9CEAAE70A4.html) **在LCSC的开源链接BOM部分点击“立即下单”按钮，可一键将所有所需元件导入购物车。** * * * ## 原理图 ![](https://s3.eeclub.top/original/1X/ce83b55eb28e6693f4f2bc2c8bc492e7a7d83b6c.png) * * * ## PCB 顶层 ![](https://s3.eeclub.top/original/1X/3ed730c8ed39117bae4d6f87e8251680d47d1bb2.png) 底层 ![](https://s3.eeclub.top/original/1X/494979651c8d391cc71d0a5575613d4f23f91f7c.png) * * * ## 下载链接 以下链接包含：JLCEDA项目文件、原理图PDF、PCB制造用Gerber文件、SMPS设计工具SMPSKit、反激变压器计算表(Mathcad)、丝印图、变压器规格书、各芯片数据手册、PSIM仿真模型、波特图Matlab代码及其他参考资料（部分资料来自互联网）。 - 123云盘：[https://www.123684.com/s/2Y9Djv-2hTdH](https://www.123684.com/s/2Y9Djv-2hTdH) - 百度网盘：[https://pan.baidu.com/s/1767xJthTFWQbxgeZQXM\_Hg?pwd=9527](https://pan.baidu.com/s/1767xJthTFWQbxgeZQXM_Hg?pwd=9527) 提取码：9527 如果您觉得有用，可通过上方123云盘链接支持我。若在微信公众号（官方账号：zeruns-gzh）阅读本文，也可点击文章底部“支持作者”按钮。感谢您的支持！ * * * ## 推荐开源项目 - **便于家庭用电监测的开源三相电力采集器** ：[https://blog.zeruns.com/archives/771.html](https://blog.zeruns.com/archives/771.html) - **基于STM32的开源同步整流升降压数字电源** ：[https://blog.zeruns.com/archives/791.html](https://blog.zeruns.com/archives/791.html) - LM25118 自动升降压可调DC-DC电源模块：[https://blog.zeruns.com/archives/727.html](https://blog.zeruns.com/archives/727.html) - **基于CH32V307的开源智能电子负载（来自嵌入式竞赛）** ：[https://blog.zeruns.com/archives/785.html](https://blog.zeruns.com/archives/785.html) - EG1151 高功率同步整流升降压电源模块（支持Type-C PD快充输入）开源：[https://blog.zeruns.com/archives/794.html](https://blog.zeruns.com/archives/794.html) - 开源140W+65W升降压PD3.1快充模块（2C+1A接口）、IP6557+IP6538、205W桌面充电器：[https://blog.zeruns.com/archives/801.html](https://blog.zeruns.com/archives/801.html) - **开源Type-C扩展坞（4个10Gbps USB-A接口、2.5G网卡、读卡器）** ：[https://blog.zeruns.com/archives/868.html](https://blog.zeruns.com/archives/868.html) * * * ## 延伸阅读 - **高性价比便宜VPS/云服务器推荐** ：[https://blog.zeruns.com/archives/383.html](https://blog.zeruns.com/archives/383.html) - Minecraft服务器搭建教程：[https://blog.zeruns.com/tag/mc/](https://blog.zeruns.com/tag/mc/) - 跨境电商独立站搭建教程、WordPress外贸网站指南：[https://blog.zeruns.com/archives/889.html](https://blog.zeruns.com/archives/889.html) - ZGRL-80摄影灯拆解与电路设计分析：[https://blog.zeruns.com/archives/882.html](https://blog.zeruns.com/archives/882.html) - 机械革命Code10AI笔记本（Ultra7-255H）快速开箱评测与拆解：[https://blog.zeruns.com/archives/895.html](https://blog.zeruns.com/archives/895.html) - GL-RM1PE快速开箱评测与拆解、普通PC启用BMC远程管理：[https://blog.zeruns.com/archives/900.html](https://blog.zeruns.com/archives/900.html)