Title:
BATTERY REMAINING AMOUNT DISPLAY SYSTEM
Document Type and Number:
Japanese Patent JP2007093263
Kind Code:
A
Abstract:
To provide a battery remaining amount display system which has high accuracy of detecting battery voltage and has favorable space efficiency for thinned instruments.
The battery remaining amount display system comprises a battery, a circuit board connected to the battery, a heat-producing element which is arranged on the circuit board to produce heat through a current, a microcomputer which is arranged on the circuit board and has a voltage detection function and a function for allowing a current to pass through the heat-producing element, and a display means which changes its color by detecting heat through the contact with or approach to the heat-producing element.
Inventors:
MITAMURA TOMOKAZU
KUWAMURA TOSHIYA
UENO NORIYUKI
GOTANDA YUKIHIRO
KUWAMURA TOSHIYA
UENO NORIYUKI
GOTANDA YUKIHIRO
Application Number:
JP2005279727A
Publication Date:
April 12, 2007
Filing Date:
September 27, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G01R31/36; H01M10/48
Domestic Patent References:
| JP2004361359A | 2004-12-24 | |||
| JPH0475978U | 1992-07-02 |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano