Automatic and manual DC power switch

Details Automatic and manual DC power switch Automatic and manual DC power switch

1988-02-26

1990-02-27

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

307 107, 307130, 307140, 320 1, 340663, H02H 324

Patent

active

049051156

ABSTRACT:
An automatic switching apparatus is disclosed for a system employing a battery and a charging device. A load is automatically disconnected in response to the decrease in voltage caused by an inactivation of the charging device so that the battery will not be undesirably discharges if the load is not turned off. An override switch is provided to allow the load to draw power even when the charging device is not operating.

REFERENCES:
patent: 3646354 (1972-02-01), Von Brimer
patent: 3656045 (1972-04-01), Frezzolini et al.
patent: 4005344 (1977-01-01), Gaind et al
patent: 4137557 (1979-01-01), Ciarniello et al.
patent: 4439805 (1984-03-01), Tarleton
patent: 4493001 (1985-01-01), Sheldrake
patent: 4530027 (1985-07-01), Berger
patent: 4724332 (1988-02-01), Finger
patent: 4736145 (1988-04-01), Sakurai et al.
Radio Shack Catalog No. 419, Spring 1988, p. 147.

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