筆記本電腦電池充電控制器bq24700應用

摘要：本文介紹專為筆記本電腦電池組設計的充電控制器bq24700，采用該控制芯片的充電器，可對鋰離子電池、鎳氫/鎳鎘等多種電池組充電。bq24700的動態充電管理功能，在最短時間內完成充電。該芯片可以自動切換交流適配器或電池組供電。該器件還具有完善的保護功能。 敘詞：動態充電管理 降壓變換器 手動/自動切換 過放電保護 Abstract：bq24700 is a highly integrated battery charge controller and selector tailored for the notebook and sub-notebook PC applications. The chip is designed for charge management of NiCd/NiMH and Li-ion battery packs. The bq24700 uses Dynamic Power Management to minimize battery charge time by maximizing use of available wall-adapter power. The selector function allows the manual and automatic selection of the system power source. Keyword：Dynamic Power Management Buck Converter Manual/Automatic Switch Over Discharge Protection