Battery charger and battery charging method

Details Battery charger and battery charging method Battery charger and battery charging method

1998-01-22

1999-11-09

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell charging

Pulsed

320145, 323299, H02J 704

Patent

active

059821515

ABSTRACT:
In a battery charger, current regulating means and voltage regulating means can be prevented from damages. In the case where a loss of current regulating means (11) or voltage regulating means (12) exceeds an allowable loss, pulse width modulating means (15, 16) for generating a pulse signal having a desired pulse width and control means (18, 19) for intermittently operating the current regulating means or the voltage regulating means, having the loss exceeding the allowable loss, based on the pulse signal are provided to suppress the loss of the current regulating means or the voltage regulating means and suppress heat generated thereby, thus the current regulating means and the voltage regulating means can be protected from damages.

REFERENCES:
patent: 4177389 (1979-12-01), Schott
patent: 4272806 (1981-06-01), Metzger
patent: 5682305 (1997-10-01), Kurotami et al.
patent: 5710506 (1998-01-01), Broell et al.
patent: 5867011 (1999-02-01), Jo et al.
patent: 5869956 (1999-02-01), Nagao et al.
patent: 5892354 (1999-04-01), Nagao et al.

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