Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1975-11-05
1977-05-03
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307313, 307255, 357 35, 357 44, 357 48, H03K 333
Patent
active
040216870
ABSTRACT:
A transistor circuit which comprises a first transistor of the N-P-N type, a second transistor of the P-N-P type and a third transistor of the N-P-N type, and in which a base of the first transistor, an emitter of the second transistor and a collector of the third transistor are electrically connected with one another, while a collector of the first transistor and a base of the second transistor are electrically connected with each other, whereby the first transistor is prevented from being driven into an extremely deep saturation region.
REFERENCES:
patent: 3604953 (1971-09-01), Carmody
patent: 3898483 (1975-08-01), Sander et al.
patent: 3934159 (1976-01-01), Nomiya et al.
Davis B. P.
Hitachi , Ltd.
Miller, Jr. Stanley D.
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