Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1984-10-12
1987-02-10
Miller, Stanley D.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307252C, 307 96R, 307318, H03K 1908, H03K 326
Patent
active
046424830
ABSTRACT:
A reverse bias current supply system for a switching device having a circuit including a constant voltage device connected in parallel with an electrical circuit which supplies a base reverse bias current to the switching semiconductor device so that a voltage across the electrical circuit is clamped to control the base reverse bias current at a constant level regardless of variations in the power supply or component characteristics.
REFERENCES:
patent: 4117351 (1978-09-01), Kalfus et al.
patent: 4239989 (1980-12-01), Brajder
patent: 4293779 (1981-10-01), Nestler et al.
patent: 4298809 (1981-11-01), Onda et al.
patent: 4426590 (1984-01-01), Rischmuller
Davis B. P.
Fuji Electric Company Ltd.
Miller Stanley D.
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