Semiconductor switch device

Details Semiconductor switch device Semiconductor switch device

1976-07-12

1978-05-02

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307275, 307314, H03K 1704, H03K 1712, H03K 1760

Patent

active

040877035

ABSTRACT:
A semiconductor switch device comprising: a main power source for supplying main current; a load connected to one side of said main power source; a semiconductor switch having first and second main current electrodes and a control electrode, the first main current electrode being connected to the other side of the main power source, the semiconductor switch being rendered conductive across the main current electrodes when a forward current is supplied to the control electrode; a current transformer having a core, a primary winding and a secondary winding, the primary winding being connected between the second main current electrode of the semiconductor switch and the load, and the secondary winding being connected at one end to the control electrode of the semiconductor switch, whereby a forward current responsive to the main current flowing in the primary winding is supplied from the secondary winding to the control electrode; and an auxiliary power supply connected between the other end of the secondary winding of the current transformer and the first main current electrode of the semiconductor switch for supplying power to the secondary winding of the current transformer.

REFERENCES:
patent: 3143668 (1964-08-01), Bloodworth et al.
patent: 3681711 (1972-08-01), Hanby

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