The present invention provides a battery pack voltage equalization device comprising: a sampling unit which samples the battery voltage signals of the battery pack according to a sampling control signal; an analog-to-digital converting 5 unit which converts the sampled voltage signals into a digital voltage signal; a control unit which generates the sampling control signal and a driving signal based on the digital voltage signal; an equalization unit which equalizes the voltage signals of the battery pack based on the driving signal; a filter unit which is connected to the equalization unit and the battery pack. The present invention 10 applies the filter unit to filter out the ripple signal generated during equalization.
申请公布号
WO2010048849(A1)
申请公布日期
2010.05.06
申请号
WO2009CN74273
申请日期
2009.09.28
申请人
BYD COMPANY LIMITED;ZHENG, QINGFEI;DAI, XIANGJUN;MI, YAOZHONG;ZHOU, AIMEI