Temperature switch controlled charging circuit

Details Temperature switch controlled charging circuit Temperature switch controlled charging circuit

1998-09-04

2000-06-27

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With thermal condition detection

H01M 1046

Patent

active

060811013

ABSTRACT:
A battery charging circuit includes a temperature switch actuated when the temperature of a battery reaches a preset value as a result of the battery being charged to saturation. The temperature control switch causes the circuit to switch to a small current, which maintains the charge status of the battery within a predetermined power source voltage variation range until the battery is removed or the power source cut off. A power source is included for supplying the charging current to the battery and also for driving a load. The charging circuit includes a return current diode for providing an automatic emergency power supply from the battery to the load when the power source is cut-off.

REFERENCES:
patent: 4609861 (1986-09-01), Inaniwa et al.
patent: 5319298 (1994-06-01), Wanzong et al.

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