Hybrid circuit module having bridge circuit and rectifying circu

Details Hybrid circuit module having bridge circuit and rectifying circu Hybrid circuit module having bridge circuit and rectifying circu

1989-11-09

1991-04-02

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

363132, 363136, H02M 545, H02M 5458

Patent

active

050051130

ABSTRACT:
An inverter circuit includes fast transistors for PWM and slow switching thyristors for a fundamental frequency. The inverter circuit further includes a rectifying circuit for rectifying an input AC power and a bridge circuit. The bridge circuit includes a plurality of bridge circuit arms, each of the bridge circuit arms constituted by connecting a collector terminal of a transistor to a cathode terminal of a thyristor. An emitter of the transistor is connected to a negative side of the rectified output of the rectifying circuit, and an anode of the thyristor is connected to a positive side of the rectified output of the rectifying circuit.

REFERENCES:
patent: 4424557 (1984-01-01), Steigerwald
patent: 4482946 (1984-11-01), Bhagwat
patent: 4485434 (1984-11-01), Beeston et al.
patent: 4489371 (1984-12-01), Kernick
patent: 4670833 (1987-06-01), Sachs
patent: 4709317 (1987-11-01), Iizuka et al.
patent: 4918590 (1990-04-01), Ohtuka et al.

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