Electrical inverter circuit

Details Electrical inverter circuit Electrical inverter circuit

1974-12-24

1976-06-29

Shoop, William M.

H02M 7515

Patent

active

039671844

ABSTRACT:
An electrical inverter comprises positive and negative supply lines across which is connected a first series circuit including the anode-cathode path of a first thyristor and the anode-cathode path of a second thyristor. A second series circuit bridges the supply lines and includes a pair of capacitors. In addition a commutating circuit is provided for the first and second thyristors, and this includes a transformer having a secondary winding connected between a point intermediate the first and second thyristors, and the capacitors of the second series circuit, and the primary winding of the transformer is connected in a series circuit, one end of which is connected to the point intermediate the first and second thyristors. The arrangement is such that when the commutating circuit is operated, current flow in the primary and secondary windings of the transformer acts to reduce the current flowing in the conducting thyristor to zero.

REFERENCES:
patent: 3278827 (1966-10-01), Corey et al.
patent: 3286155 (1966-11-01), COrey
patent: 3311809 (1967-03-01), Corey et al.
patent: 3331011 (1967-07-01), Landis
patent: 3487278 (1969-12-01), Turnbull et al.
patent: 3588542 (1971-06-01), Knapp
Electric Machinery, A. E. Fitzgerald & Charles Kingsley, Jr., McGraw-Hill Book, Company, Inc., New York, p. 663, 1952.

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