Circuit arrangement for firing a controlled semiconductor valve,

Details Circuit arrangement for firing a controlled semiconductor valve, Circuit arrangement for firing a controlled semiconductor valve,

1974-11-29

1976-10-19

Dixon, Harold A.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

250265, H03K 1760, H03K 114

Patent

active

039873145

ABSTRACT:
The invention concerns a circuit arrangement for firing a controlled semiconductor valve, particularly a thyristor, the control path of which is connected to a d-c voltage source by way of the collector-emitter path of a transistor. In order to obtain a control electrode current at the semiconductor valve, which is independent of the d-c voltage of the d-c voltage source and the control electrode characteristic of the semiconductor valve, provision is made, according to the invention, that a resistor is arranged in series with the collector-emitter path of the transistor, and that a Zener diode is connected between the base of the transistor and that terminal of the resistor which is facing away from the transistor.

REFERENCES:
patent: 3114872 (1963-12-01), Allard
patent: 3281639 (1966-10-01), Potter et al.
patent: 3846644 (1974-11-01), Takagi et al.

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