Electric power conversion systems – Current conversion – Including automatic or integral protection means
Patent
1992-10-21
1994-02-15
Beha, Jr., William H.
Electric power conversion systems
Current conversion
Including automatic or integral protection means
363 37, 363129, 363138, H02M 7155, H02M 7515
Patent
active
052872602
ABSTRACT:
A power converting apparatus controls switching of self turn-off type semiconductor devices so as to perform power conversion. The apparatus comprises a plurality of switch units each having first and second self turn-off type semiconductor devices, first and second diodes, and a capacitor. The cathode of the first self turn-off type semiconductor device is connected to the anode of the first diode, and the cathode of the second diode is connected to the anode of the second self turn-off type semiconductor device. The capacitor is connected between a common junction between the cathode of the first self turn-off type semiconductor device and the anode of the first diode and a common junction between the cathode of the second diode and the anode of the second self turn-off type semiconductor device.
REFERENCES:
patent: 4566051 (1986-01-01), Komulainen
patent: 4721897 (1988-01-01), Matsuse et al.
patent: 5053940 (1991-10-01), Peppel
Beha Jr. William H.
Kabushiki Kaisha Toshiba
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