Battery and method for charging/discharging the battery

Details Battery and method for charging/discharging the battery Battery and method for charging/discharging the battery

1993-11-26

1995-11-28

Stephan, Steven L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 14, H01M 1044

Patent

active

054711282

ABSTRACT:
A battery charging system (200) includes a field-effect transistor (212) as a current discharge protection device in order to prevent current from flowing from battery (222) to charger (202) when charger (202) is not charging or discharging battery (222). The field-effect transistor (212) also protects battery (222) in the case that the battery contacts are inadvertently shorted. When charger (202) is charging battery (222), field-effect transistor (212) is turned on, providing for reduced voltage drop across the device due to its low on resistance, and also allows for charger (202) to charge and discharge (condition) battery (222).

REFERENCES:
patent: 5194059 (1993-02-01), Patino et al.
patent: 5198743 (1993-03-01), McClure et al.
patent: 5307000 (1994-04-01), Podrazhansky et al.
patent: 5349281 (1994-09-01), Bugai
patent: 5363030 (1994-11-01), Ford et al.
patent: 5363031 (1994-11-01), Miller et al.

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