Title:
Battery voltage monitoring circuit
Document Type and Number:
Japanese Patent JP6030820
Kind Code:
B2
Abstract:
A battery voltage monitoring circuit includes a first power supply terminal to be connected to the positive terminal of a battery pack having rechargeable cells connected in series; a first supply voltage sensing terminal to be connected to the positive terminal of the battery pack; a first resistor connected between the first power supply terminal and the first supply voltage sensing terminal; a second supply voltage sensing terminal to be connected to the negative terminal of a first rechargeable cell of the rechargeable cells, the first rechargeable cell being on the positive terminal side of the battery pack and connected to the positive terminal of the battery pack; a second resistor connected between the second supply voltage sensing terminal and the first power supply terminal; and a first comparator configured to compare a voltage at the first power supply terminal and a voltage at the first supply voltage sensing terminal.
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Inventors:
Akihiro Nishizawa
Takashi Takeda
Takashi Takeda
Application Number:
JP2010248213A
Publication Date:
November 24, 2016
Filing Date:
November 05, 2010
Export Citation:
Assignee:
MITSUMI ELECTRIC CO.,LTD.
International Classes:
G01R19/165; G01R19/00; G01R31/04; H01M10/48; H02J7/02
Domestic Patent References:
| JP200886069A | ||||
| JP4172927A | ||||
| JP8068820A | ||||
| JP2008092655A | ||||
| JP2009288034A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito