Inverter apparatus

Details Inverter apparatus Inverter apparatus

1978-09-18

1980-07-08

Miller, J. D.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 98, 363138, 318801, 318808, 318811, H02P 1320, H02P 540

Patent

active

042120560

ABSTRACT:
In an inverter apparatus of the type comprising a plurality of thyristors connected between a DC source and an AC load, a control circuit for sequentially turning ON and OFF the thyristors according to a predetermined sequence, and a reverse bias circuit including a pair of power transistors respectively connected in series with the DC source and ON.sup.. OFF controlled by the control circuit for applying a reverse bias to the thyristors to effect simultaneous commutation thereof, and a pair of diodes connected across the DC source, there are provided a second thyristor connected between the plurality of thyristors and the power transistors and turned ON at the time of commutation of the plurality of thyristors by the control circuit and a reactor connected in parallel with the second thyristor.

REFERENCES:
patent: 3577052 (1971-05-01), Bauer
patent: 3860858 (1975-01-01), Nola
patent: 3887853 (1975-06-01), Klein et al.
patent: 3912993 (1975-10-01), Bereisa, Jr.
patent: 4002958 (1977-01-01), Akamatsu
patent: 4048554 (1977-09-01), Stich
patent: 4054818 (1977-10-01), Risberg

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