Adjustable phase shift circuit

Details Adjustable phase shift circuit Adjustable phase shift circuit

1987-08-30

1988-05-17

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

307262, 330302, H03F 345

Patent

active

047453702

ABSTRACT:
A circuit for shifting the phase of an applied differential input signal is disclosed which includes first and second differential amplifiers each having an input across which the input signal is applied, each differential amplifier having an input and an output transistor the emitters of which are coupled together via a respective capacitor. A first resistor is coupled between the emitter of the input transistor of first one of the differential amplifiers and the emitter of the output transistor of the second differential amplifier while a second resistor is coupled between the emitter of the input transistor of the second differential amplifier and the emitter of the output transistor of the first differential amplifier.

REFERENCES:
patent: 3852624 (1974-12-01), Marik et al.

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