公开(公告)号：US20110012565A1

公开(公告)日：2011-01-20

申请号：US12631988

申请日：2009-12-07

Applicant: Li-Wei LEE ,  Nien-Hui KUNG ,  Kwan-Jen CHU ,  Hsuan-Kai WANG

Inventor： Li-Wei LEE ,  Nien-Hui KUNG ,  Kwan-Jen CHU ,  Hsuan-Kai WANG

IPC: H02J7/04

CPC classification number: H02J7/0073

Abstract: A charging circuit with an application system thereof provides an error amplifier to control a transistor switch for controlling the charging power source to charges the battery. When the voltage difference between the power source and load terminals of the transistor switch drops along with the transistor switch being turned on, the output voltage of the error amplifier changes as well to increase the turning-on resistance of the transistor switch such that the voltage difference between the power source and load terminals is capable of maintaining at a value above a certain reference level for avoiding the unstable state resulting from the charging circuit being turned on and off frequently.

Abstract translation: 具有其应用系统的充电电路提供误差放大器来控制用于控制充电电源以对电池充电的晶体管开关。 当晶体管开关的电源和负载端子之间的电压差随着晶体管开关导通而下降时，误差放大器的输出电压也改变，以增加晶体管开关的导通电阻，使得电压 电源和负载端子之间的差异能够保持在高于特定参考电平的值，以避免由充电电路频繁接通和断开引起的不稳定状态。