In this battery voltage detection controller of the present invention, an output from an overcharge and overdischarge determination circuit 11 for determining the overcharge and overdischarge of the each cell in the cell groupCGi is input into a constant current circuit 12 through an inversion OR circuit 14 of a logical sum circuit, and an inversion AND circuit 15 of a logical sum circuit. 本発明の電池電圧検出制御装置は、セルグループCGiの各セルの過充放電判定を行う過充放電判定回路11の出力を論理和回路である反転OR回路14と、論理積回路である反転AND回路15を通して定電流回路12に入力する。 - 特許庁