Controlled switching of non-regenerative power semiconductors

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons

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307255, 307270, 307571, 307296R, H03K 1760, H03K 326

Patent

active

045408939

ABSTRACT:
Methods and circuitry for the controlled switching of non-regenerative power semiconductors to provide for a less rapid rate-of-change of load current while the power semiconductor is in its active region, thereby reducing electromagnetic interference. Methods and circuitry for the controlled turn-on with fast turn-off, controlled turn-off with fast turn-on or controlled turn-on and controlled turn-off of voltage-controlled and current-controlled semiconductors, with either load voltage (dV/dt) or load current (dI/dt) feedback are described.

REFERENCES:
patent: 4251742 (1981-02-01), Beelitz
patent: 4318011 (1982-03-01), Zeis
patent: 4410810 (1983-10-01), Christen

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