Reference voltage source circuit for a Darlington circuit

Details Reference voltage source circuit for a Darlington circuit Reference voltage source circuit for a Darlington circuit

1991-06-21

1992-08-18

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072966, 307315, H03K 301

Patent

active

051401819

ABSTRACT:
According to this invention, the emitters of the transistors constituting a differential amplifier are biased by a constant current source. A current mirror circuit is connected to the collectors of the transistors constituting the differential amplifier. A reference potential circuit for generating a reference potential is connected to the base of one of the transistors constituting the differential amplifier, and an output current from the current mirror circuit is fed back to the base of the other transistor. Therefore, the reference potential generated from the reference potential circuit is applied to the base of the other transistor. The reference potential applied to the base of the other transistor is applied to the base of a transistor of Darlington-connected transistors which receives an input signal, and the reference potential serves as a bias power source voltage.

REFERENCES:
patent: 4066914 (1978-01-01), Gundry
patent: 4506208 (1985-03-01), Nagano

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