Power source switching circuit

Details Power source switching circuit Power source switching circuit

1987-12-23

1989-10-10

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

307130, 307127, 363 26, H01H 326

Patent

active

048734543

ABSTRACT:
A new type of power source switching circuit is disclosed. In the device of the present invention, a relay is used instead of semiconductor elements which are used in the conventional types of power source switching circuit. Compared with the conventional ones, the circuit according to the present invention is much simpler, and assures the protection of the circuit against damages due to an overvoltage or impact pulses, which damages are liable to occur in the conventional types of power source switching circuit.

REFERENCES:
patent: 3239723 (1966-03-01), Washington et al.
patent: 3467835 (1969-09-01), Cola
patent: 3560796 (1971-02-01), Landis
patent: 4274122 (1981-06-01), Hansen et al.
patent: 4360853 (1982-11-01), Welk
patent: 4550272 (1985-10-01), Kimura et al.
patent: 4581690 (1986-04-01), Russell
patent: 4608498 (1986-08-01), Falzarano et al.
patent: 4716301 (1987-12-01), Willmott et al.

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