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1. (WO2013111410) BATTERY CELL VOLTAGE EQUALISATION CIRCUIT

Pub. No.:    WO/2013/111410    International Application No.:    PCT/JP2012/078221
Publication Date: Fri Aug 02 01:59:59 CEST 2013 International Filing Date: Thu Nov 01 00:59:59 CET 2012
IPC: H02J 7/00
H01M 10/44
H02J 7/02
Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
株式会社豊田自動織機
Inventors: YAMAMOTO, Munetaka
山本 宗隆
SUZUKI, Masaaki
鈴木 正彰
KURAISHI, Mamoru
倉石 守
Title: BATTERY CELL VOLTAGE EQUALISATION CIRCUIT
Abstract:
A battery cell voltage equalisation circuit (1) equalises the voltage of series-connected battery cells (B1, B2). A switch (S1) is electrically connected with the positive electrode of the battery cell (B1) through a first path and is electrically connected with the negative electrode of the battery cell (B1) through a second path, and electrically connects or disconnects the first path and the second path. A switch (S2) is electrically connected with the positive electrode of the battery cell (B2) through the second path and is electrically connected with the negative electrode of the battery cell (B2) through a third path, and electrically connects or disconnects the second path and the third path. An inductor (L) is provided on the second path. Respective fuses (h1 to h3) are provided on the first to the third paths. The switches (S1, S2) are alternately controlled so as to be ON.