Document Type and Number:
Japanese Patent JPS4990012
Kind Code:
U
Abstract:
An automatic frequency control circuit includes a transistor, an L-C resonant circuit connected to the transistor to form an oscillator and a varicap diode which is supplied with an automatic frequency control voltage signal and is reverse biased by a bias voltage received from the collector electrode of the transistor. The bias voltage provided by the transistor is constant so that the varicap diode is inhibited from performing a rectifying operation on the oscillating signal produced by the oscillator.
Application Number:
JP13563772U
Publication Date:
August 05, 1974
Filing Date:
November 25, 1972
Export Citation:
International Classes:
H03J7/02; H03B5/12; H03J7/08; H03L7/02; (IPC1-7): H03B3/04; H03B5/12