IP Library Granted Patent US 9,853,463
Granted Patent B2
US 9,853,463 · App. 15/142,326 · Granted Dec 26, 2017

Battery monitoring and control integrated circuit and battery system

Inventors: Akihiko Kudo (Hitachinaka, JP); Mutsumi Kikuchi (Hitachinaka, JP); Akihiko Emori (Tokyo, JP); Akihiro Machida (Hitachinaka, JP)
Assignee: Hitachi Automotive Systems, Ltd.
H02J7/0021
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Quick Facts
Patent No.
US 9,853,463
App. No.
15/142,326
Granted
Dec 26, 2017
Kind
B2
Abstract

A battery monitoring and control integrated circuit is connected to a cell group having a plurality of series-connected single cells for monitoring and controlling the single cells, and includes: a first start input terminal for connecting to a DC signal generation circuit which generates a DC signal based on an AC start signal input from the outside; a start detection unit which detects the DC signal and activates the battery monitoring and control integrated circuit; and a start output unit which outputs the AC start signal to the outside after the activation of the battery monitoring and control integrated circuit.

Claims (8)

1. A battery monitoring and control integrated circuit which is connected to a cell group having a plurality of series-connected single cells, and which monitors and controls the single cells, the battery monitoring and control integrated circuit comprising:

a signal input terminal for inputting an AC signal;

a DC signal generation circuit which generates a DC signal based on the AC signal; and

a start detection unit which detects the DC signal and activates the battery monitoring and control integrated circuit;

whereby the DC signal is for activating the battery monitoring and control integrated circuit.

2. The battery monitoring and control integrated circuit according to claim 1 , wherein the DC signal generation circuit is a doubler rectifier circuit.

3. The battery monitoring and control integrated circuit according to claim 2 , wherein the doubler rectifier circuit includes a rectifying element built in the battery monitoring and control integrated circuit.

4. The battery monitoring and control integrated circuit according to claim 1 , further comprising a second input terminal for inputting a second DC signal, wherein the second DC signal is input into the start detection unit not via the DC signal generation circuit.

Assignments (2)
CHANGE OF NAME Recorded Mar 25, 2021
From: HITACHI AUTOMOTIVE SYSTEMS, LTD.
To: HITACHI ASTEMO, LTD.
Reel/Frame 056299/0447 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 29, 2016
From: KUDO, AKIHIKO; KIKUCHI, MUTSUMI; EMORI, AKIHIKO; MACHIDA, AKIHIRO
To: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Reel/Frame 038420/0404 →
Continuity (2)
Continuation 14367739
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