Automatic switchover circuit

Details Automatic switchover circuit Automatic switchover circuit

1985-11-19

1987-04-14

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to connect the input to diverse power sources

363126, H02M 704

Patent

active

046583459

ABSTRACT:
A circuit for automatically operating a switching power supply is capable of operating from first and second input voltage ranges. The circuit changes the switching power supply from a full-wave rectifier circuit to a voltage doubler rectifier circuit by electrically connecting first and second nodes. The circuit includes a rectifier circuit and a voltage level sensing device for generating an output voltage to trigger a triac, which connects the first and second nodes.

REFERENCES:
patent: 3979644 (1976-09-01), Everhart
patent: 4148088 (1981-01-01), Meroni
patent: 4383212 (1983-05-01), Ballman
IBM Technical Disclosure Bulletin, vol. 28, No. 3, Aug. 1985, pp. 1246 and 1247.

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