Power supply start-up circuit

Details Power supply start-up circuit Power supply start-up circuit

1992-02-05

1993-06-01

Stephan, Steven L.

Electric power conversion systems

Current conversion

With starting arrangement

323901, 363 65, H02M 7517

Patent

active

052165868

ABSTRACT:
A switch is connected in series with a capacitor inserted in parallel into a direct-current output portion, and the switch is controlled to turn OFF when an AC input source is not connected to a power unit and turn ON when a constant time period has elapsed after the connection to the AC input source. The capacitor is charged when the switch is in the OFF state but not charged in response to the connection to the input source.

REFERENCES:
patent: 4405975 (1983-09-01), Overstreet et al.
patent: 4698743 (1987-10-01), Onodera et al.
patent: 4941077 (1990-07-01), Fabianowski et al.

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