電路板圖如下：

描述

一個微型電池充電器 5V 800mA

它使用 MCP7386 (U4) 為電池充電，使用 LTC3402EMS (U2) 將電壓轉換為高達 5V。

我決定將它用于使用樹莓派零的小型凸輪記錄器。

該連接器提供以下電壓：

1：+Vbat，電池正極

2：SW1，外部開關端子，用于將電池與升壓轉換器分離，從而關閉電源。它連接到與 Vbat 相同的終端。

3：SW2，外部開關的另一端。

4：+5V升壓轉換器的輸出電壓

5：地

6：接地

二極管 D1、D2、D5 用于顯示電池的狀態。

連接器 J4 是一個微型 USB 連接器，用于提供電壓和為電池充電。

物料清單如下：

"RefDes","值","模式"

"C19","100nF","CAP_0603"

"C20","470nF","CAP_0603"

"C21","100nF","CAP_0603"

"C22","10uF","CAP_1206"

"C23","100u","CAPAE-5.3x5.3h7"

"C24","100nF","CAP_0603"

"C25","100nF","CAP_0603"

"C27","100u","CAPAE-5.3x5.3h7"

"C28","100nF","CAP_0603"

"D1","","DIO_0603"

"D2","","DIO_0603"

"D3","","SMB"

"D4","","DIO_0603"

"D5","","DIO_0603"

"D6","","SMB"

"D7","","SMB"

"J4","","934"

"J5","","HDR-1x6T/2.54/15x2"

"L1","","SRP7030F"

"Q1","","SOT23"

"R13","6.19k","RES_0603"

"R14","7.3k","RES_0603"

"R15","10k","RES_0603"

"R16","6.19k","RES_0603"

"R23","6.19k","RES_0603"

"R24","2.2k","RES_0603"

"R25","1.19k","RES_0603"

"R26","0R","RES_0603"

"R27","10k","RES_0603"

"R30","10k","RES_0603"

"R31","6.19k","RES_0603"

"R32","6.19k","RES_0603"

"R33","6.19k","RES_0603"

"R34","6.19k","RES_0603"

"TP1","","測試點"

"TP2","","測試點"

"TP3","","測試點"

"U4","","SOJ-16/8.65x1.27"

"U5","","MSOP-10"

?