太阳能手机充电器，电池，单片机，智能，BUCK变换器

经过DC/DC变换电路处理后，由充电电路为负载供电。锂电池一般不宜采用全过程恒流充电方式，而是采取开始恒流快速充电，待电池电压上升到设定值时，自动转入恒压充电的方式，并且这样有利于保存电池容量。充电过程中采用LED灯、数码管指示，系统中设计有完备的过流过压保护，避免因电池过度充电而损坏，并且充电器采用模块式结构和USB接口，可对手机、MP3、摄像机等多种数码产品充电。-Solar cell phone chargers, batteries, microcontroller, intelligence, BUCK converter

After DC/DC transform circuit, by charging circuit after treatment for load power supply. Lithium battery should not be commonly use process constant-current charging ways, but take began constant-current fast charging for battery voltage, rose to set value, be transferred to the constant pressure charging ways, and this helps to preserve battery capacity. Charging process using LED lamp, digital tube instructions, system design of a complete flows, avoid the battery voltage protection to damage, and excessive rechargeable battery charger a modular structure and USB interface, but for mobile phones, MP3, video cameras and so on many kinds of digital products charging.