Constant voltage circuit

Details Constant voltage circuit Constant voltage circuit

1976-08-10

1977-12-13

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307296R, 323 4, 323 22T, H03K 1700

Patent

active

040631206

ABSTRACT:
A constant voltage circuit comprises first and second circuit terminals; a current source connected to said first and second circuit terminals; a first npn transistor whose collector is connected to the first circuit terminal through a resistor; a second npn transistor having a collector connected to the emitter of the first npn transistor, a base connected to the collector of the first npn transistor, and an emitter connected to the second circuit terminal; a third npn transistor having a base connected to the base of the first npn transistor, an emitter connected to the emitter of the first npn transistor through a resistor and a collector connected to the first circuit terminal through a resistor; a fourth transistor having a base connected to the collector of the third transistor and a collector and emitter coupled to the first and second circuit terminals; a resistor connected between the first circuit terminal and a junction of the bases of the first and third transistors; and a resistor connected between the second circuit terminal and a junction between the bases of the first and third transistors.

REFERENCES:
patent: 3544882 (1970-12-01), Tanaka
patent: 3617859 (1970-03-01), Dobkin et al.
patent: 3886435 (1975-05-01), Steckler

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