Battery charger for vehicle-mounted equipment using engine opera

Details Battery charger for vehicle-mounted equipment using engine opera Battery charger for vehicle-mounted equipment using engine opera

1989-09-21

1991-01-08

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 31, 320 38, 320 61, H02J 700, H02J 714

Patent

active

049839047

ABSTRACT:
A battery charger for a vehicle-mounted equipment comprises a first sensor for detecting when the voltage of the vehicle battery is higher than a specified level. A second sensor is provided for detecting when the engine of the vehicle is running. The outputs of the sensors determine the start timing of a charging operation. A switch is connected between the vehicle battery and the equipment's rechargeable battery. A timing circuit is responsive to the output signals of the first and second sensors for causing the switch to establish a path between the batteries for an interval sufficient to charge the rechargeable battery with a current supplied from the vehicle battery.

REFERENCES:
patent: 3806790 (1974-04-01), Marshall
patent: 3829753 (1974-08-01), Marshall
patent: 3838327 (1974-09-01), Uemichi et al.
patent: 4090122 (1978-05-01), Hoinski
patent: 4692680 (1987-09-01), Sherer

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