Method and circuit arrangement for driving semiconductor switche

Details Method and circuit arrangement for driving semiconductor switche Method and circuit arrangement for driving semiconductor switche

1995-02-08

1997-04-01

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307112, 307116, 307125, 327365, 327419, 327427, 327432, 327440, 327434, 363 53, H01H 8314

Patent

active

056169701

ABSTRACT:
In a method and a circuit arrangement for driving semiconductor switches in a series circuit, in which a voltage limiting device is assigned to each semiconductor switch, the power losses of the voltage limiting devices are detected by a control equipment for equalizing the voltage distribution across the semiconductor switches. The control equipment generates modified control pulses for each semiconductor switch from a common control pulse on the basis of the detected power losses of the voltage limiting devices. By this means, the power loss of the voltage limiting devices is controlled to a minimum.

REFERENCES:
patent: 4356416 (1982-10-01), Weischedel
patent: 4423457 (1983-12-01), Brajder
patent: 4540933 (1985-09-01), Teulino
patent: 5149995 (1992-09-01), Hofgraff
patent: 5187632 (1993-02-01), Blessing

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