Rectifier controller responsive to sensed A.C. voltage signals

Details Rectifier controller responsive to sensed A.C. voltage signals Rectifier controller responsive to sensed A.C. voltage signals

1979-07-02

1982-08-24

Pellinen, A. D.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

307510, 361 56, 363 58, H02M 7155

Patent

active

043464327

ABSTRACT:
A rectifier controller for controlling bridge connected silicon control rectifiers (SCRs) (1 to 6) of a three-phase rectifier which is used to supply a direct current (DC) voltage to an inverter (314) used for injecting pulse coded audio frequency signals on a power line. The controller supplies gate control signals to the SCRs (1 to 6) of the rectifier bridge in accordance with the envelope of the three-phase supply voltages and provides for protection of the inverter (314) when shoot-through conditions occur in the inverter (314) and provides for output DC voltage adjustment by controlling the firing time of the rectifier bridge SCRs.

REFERENCES:
patent: 3253189 (1966-05-01), Wouk
patent: 3863134 (1975-01-01), Pollard
patent: 4000455 (1976-12-01), Gyugyi et al.
patent: 4017744 (1977-04-01), Johnson
patent: 4028607 (1977-06-01), Watanabe
patent: 4084205 (1978-04-01), Bohnert
patent: 4188663 (1980-02-01), Okawa et al.
patent: 4215394 (1980-07-01), Galloway et al.

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