行业内最通用简洁的移动电源原理图，据说这个线路图占有很大的市场份额，主芯片XK202A采用的专用单片机，可供软硬件工程参考-The industry' s most compact universal mobile power schematics, wiring diagram is said that occupies a large market share, the main chip XK202A using dedicated microcontroller, available hardware and software engineering reference