Process for controlling a darlington circuit and a low-loss darl

Details Process for controlling a darlington circuit and a low-loss darl Process for controlling a darlington circuit and a low-loss darl

1980-11-18

1983-09-13

Miller, Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307254, 307300, 307310, 307359, H03K 326, H03K 1760, H03K 2322

Patent

active

044044780

ABSTRACT:
A process for using a Darlington circuit comprising a main transistor and a pilot transistor wherein the collector voltage of the main transistor is compared with its base voltage. The resulting signal is transmitted to a switch feeding a control current to the base of the pilot transistor or the base of the main transistor. Thus, the circuit operates as a Darlington circuit or else the main transistor operates independently according to the level of the collector current.

REFERENCES:
patent: 3867650 (1975-02-01), Baldwin
patent: 3889137 (1975-06-01), Kay
patent: 3961206 (1976-06-01), Lau
patent: 4028561 (1977-06-01), Black
patent: 4060758 (1977-11-01), Wright
patent: 4318011 (1982-03-01), Zeis
IBM Technical Disclosure Bulletin, vol. 15, No. 12, May 1973, New York (US) S.K. Wiedman: "Saturation Controlled Transistors", p. 3798.
Electronics, vol. 38, No. 16, Aug. 9, 1965, New York Cianciola: "Improving Darlington Speed", p. 83.

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