FET Gating circuit with fast turn-on capacitor

Details FET Gating circuit with fast turn-on capacitor FET Gating circuit with fast turn-on capacitor

1982-06-21

1984-09-11

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307246, 307270, 307570, 307584, H03K 1704, H03K 1712, H03K 1760, H03K 17687

Patent

active

044712456

ABSTRACT:
A fast turn-on FET circuit is provided by a constant current source and fast turn-on capacitor combination in the gate circuit of the FET. At turn-on, a bypass capacitor momentarily short-circuits a control resistor in the current source such that a momentarily higher current is supplied by the current source to the FET gate until the capacitor is charged, whereafter constant current as controlled by the resistor is supplid to the FET gate circuitry to maintain conduction.

REFERENCES:
patent: 3614477 (1971-10-01), Liebman
patent: 3678297 (1972-07-01), Takahashi
patent: 3740581 (1973-06-01), Pfiffner
patent: 4280069 (1981-07-01), Kompelien
patent: 4316243 (1982-02-01), Archer

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