AC-to-DC power converter with improved power factor and overvolt

Details AC-to-DC power converter with improved power factor and overvolt AC-to-DC power converter with improved power factor and overvolt

1983-03-09

1986-04-22

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

318811, 363 44, 363129, H02M 7162

Patent

active

045846367

ABSTRACT:
An AC-to-DC power conversion by connecting GTO elements to the positive arms of a three-phase full wave bridge circuit and by repeating the mode of supplying power to a load from an AC power supply by controlling the GTO elements, and the mode of making the current flowing to the load flow back at the time of interruption of the power supply mode, when the power supply mode and the flow-back mode are switched over, overvoltage at the time of the switching is suppressed by simultaneously causing the power supply and flow-back currents to flow.

REFERENCES:
patent: 3622862 (1971-11-01), Boksjo
patent: 3842335 (1974-10-01), Boksjo
patent: 4245293 (1981-01-01), Terunuma et al.
patent: 4272807 (1981-06-01), Gallagher
patent: 4361866 (1982-11-01), Shima et al.
patent: 4447868 (1984-05-01), Turnbull

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