Cell balance adjusting circuit, abnormal cell voltage detecting circuit, method of adjusting cell balance, and method of detecting abnormal cell voltage

摘要

A cell balance adjusting circuit includes a series connection of basic cells; and a voltage holder connected through a switching circuit to individual terminals of the basic cells, wherein the switching circuit shows a switching operation to provide a parallel connection between an intermediate point between adjacent two of the basic cells and the voltage holder, and the switching circuit shows a unidirectional sequential scanning of the switching operation to all of the basic cells, and the switching circuit repeats the unidirectional sequential scanning.