Power MOSFET transfer switch

Details Power MOSFET transfer switch Power MOSFET transfer switch

1983-08-22

1984-11-20

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 66, 307130, 307140, 307584, 323288, 323319, H02J 906

Patent

active

044840845

ABSTRACT:
A switching circuit in a power supply for switching between a main power source and a standby power source includes gating device operated at the time failure of the main power source occurs to disable the operation of a plurality of MOSFETs which are switched by high frequency clock signals to couple the main power source to a load. When the main power source returns, the gating device switches the MOSFETs in synchronization with the power signals supplied by the main power source. The circuit includes a transformer operated by the high frequency clock signals to switch the MOSFETs, enabling the transfer of the power signals from the main source to the standby source to occur at the time the main power source fails.

REFERENCES:
patent: 3906251 (1975-09-01), Tanida et al.
patent: 4087697 (1978-05-01), Johnson
patent: 4400624 (1983-08-01), Ebert, Jr.
patent: 4438356 (1984-03-01), Fleischer

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