Sinusoidal oscillator with electronically variable frequency

Details Sinusoidal oscillator with electronically variable frequency Sinusoidal oscillator with electronically variable frequency

H - Electricity

03

L

331/40

H03L 7/00 (2006.01) H03B 5/12 (2006.01) H03B 5/24 (2006.01) H03B 1/00 (2006.01)

Patent

CA 1052452

Abstract of the Disclosure A sinusoidal oscillator includes a transistor ampli- fier and a feedback circuit. The transistor emitter circuit includes an inductor in parallel with a series-connected capaci- tor and variable resistance for electronically varying the fre- quency of oscillation by altering the phase angle of the ampli- fier circuit phase shift. The variable resistance can be constituted by a variable resistor or by diodes supplied with a controlled current.

248059

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