Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – Having variable number of cells or batteries in series
Patent
1999-04-27
2000-12-05
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
Having variable number of cells or batteries in series
320150, H02J 700
Patent
active
061571660
ABSTRACT:
Described is a battery switching circuit in which a first battery and a second battery are connected to a common feeding point via a first feeding circuit and a second feeding circuit each including a semiconductor switch. The switch is alternately turned on so that one of the first and second batteries supplies electric power to the feeding point at a time. The battery switching circuit includes a first temperature sensor disposed in the proximity of the switch. A temperature detector is connected to the temperature sensor for generating an operational output in response to the output of the temperature sensor when the temperature of the switch exceeds a predetermined temperature. Lastly, a circuit is connected to the switch and is responsive to the operational output of the temperature detector for turning off the switch disposed in the proximity of the temperature sensor. Because the switch is protected from being overheated, it can be mounted on a low cost nonmetallic substrate.
REFERENCES:
patent: 4843520 (1989-06-01), Nakatani
patent: 5243269 (1993-09-01), Katayama et al.
patent: 5300874 (1994-04-01), Shimamoto et al.
patent: 5327371 (1994-07-01), Maruyama et al.
patent: 5436513 (1995-07-01), Kaye et al.
patent: 5557738 (1996-09-01), Townsley et al.
patent: 5666006 (1997-09-01), Townsley et al.
patent: 5794626 (1998-07-01), Odaohara
Fukushima Akira
Kobayashi Masaki
Odaohhara Shigefumi
Dillon Andrew
International Business Machines - Corporation
Magistrale Anthony N.
Tibbits Pia
Wong Peter S.
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