Circuit arrangement comprising a high-voltage power transistor

Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock

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307254, 307280, H03K 333

Patent

active

042008131

ABSTRACT:
A high speed transistor switching circuit includes an inductor connected in the transistor base lead for reducing the switch-off time of the transistor. A controllable switch, e.g. a second transistor, is connected in parallel with the inductor for briefly short-circuiting the inductor when the first transistor is switched on thereby reducing the transistor switch-on time.

REFERENCES:
patent: 3757144 (1973-09-01), Hellerscheid et al.
patent: 3840755 (1974-10-01), Benner et al.
IBM Tech. Dsclre. Bttn., Turn Off Circuit, D. E. Norton, vol. 7, No. 6, 11/64.

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