Multiphase inverter drive circuit with synchronized switching de

Details Multiphase inverter drive circuit with synchronized switching de Multiphase inverter drive circuit with synchronized switching de

1982-01-29

1984-05-08

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 49, 363132, H02M 7217

Patent

active

044478674

ABSTRACT:
A synchronized switching delay circuit including an oscillator and multivibrator for generating a synchronized delay pulse. The oscillator is divided into three waveforms shifted in phase by 120.degree.. A 4-16 decoder receives the three waveforms and the delay pulse outputs a series of blanking pulses that blank a portion of the leading edge of each of the pulses in each of the three waveforms and their complements to provide a leading edge delay. The resulting delayed waveforms are input to a three phase bridge circuit comprised of three pairs of complementary switches. The delay enables one of the switches in each pair to completely turn off before the other switch turns on.

REFERENCES:
patent: 4051418 (1977-09-01), Berto et al.
patent: 4126819 (1978-11-01), Stobbe et al.
patent: 4213103 (1980-07-01), Birt
Technical Proposal for Gas Centrifuge Enrichment Plant Prototype Machine Drive Package (MDP), Dec. 20, 1979.

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