Patent ID: 7847519
Filing Date: 2010-12-07
Classification: H02J

Abstract:
1. A battery protector with internal impedance compensation, said battery protector comprising: a logic circuit and delay module; an overcharge comparator having a negative terminal connected with a first reference signal and a positive terminal connected with a first detected signal, said overcharge comparator then outputting a first output signal to said logic circuit and delay module for generating a first response signal to turn off a first switch while said first detected signal is higher than said first reference signal; an over-discharge comparator having a positive terminal connected with a second reference signal and a negative terminal connected with said first detected signal, said over-discharge comparator then outputting a second output signal to said logic circuit and delay module for generating a second response signal to turn off a second switch while said first detected signal is lower than said second reference signal; wherein said first reference signal is generated by a first reference signal adjustable generator having a first operational amplifier, using a voltage V wherein said second reference signal is generated by a second reference signal adjustable generator having a second operational amplifier using said voltage V