The MCU has a simple circuit to recharge the earphones. Multiple protection Overvoltage and overcurrent protection at charge / discharge battery end, high discharge conversion efficiency

Filename	Size	Update
C20020-A1	0	2017-11-23
C20020-A1\BOM_C20020-A1.pdf	9258	2017-11-22
C20020-A1\CKT_C20020-A1	0	2017-11-23
C20020-A1\CKT_C20020-A1\CKT_C20020-A1.pdf	41477	2017-11-22
C20020-A1\CKT_C20020-A1\CKT_C20020-A1.SchDoc	343552	2017-11-22
C20020-A1\COD_C20020-A1	0	2017-11-23
C20020-A1\COD_C20020-A1\COD_C20020-A1.7z	111399	2017-11-14
C20020-A1\PCB_C20020-A1	0	2017-11-23
C20020-A1\PCB_C20020-A1\PCB_C20020-A1.PcbDoc	1042944	2017-04-24
C20020-A1\PCB_C20020-A1\PCB_C20020-A1.pdf	205739	2017-10-18
C20020-A1\Thumbs.db	33792	2017-11-23

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