Voltage controlled oscillator

Details Voltage controlled oscillator Voltage controlled oscillator

1998-01-30

2000-06-13

Kinkead, Arnold

Oscillators

Solid state active element oscillator

Transistors

331177V, 331175, 331167, 331108R, 331179, H03B 512

Patent

active

060754214

ABSTRACT:
A voltage controlled oscillator (1) comprising a voltage controllable variable resonant circuit (2) having a control input (Vctrl), a positive feedback input (6) and a controllable variable frequency output (7). The voltage controlled oscillator (1) also has an amplifier (3) having an amplifier input coupled to the controllable variable frequency output (7) and an oscillator output (Out). A positive feedback path (4) couples the amplifier (3) to the a positive feedback input (6) and a frequency dependent negative feedback path (5) provides increased negative feedback to the amplifier (3) as the Radio Frequency increases.

REFERENCES:
patent: 4661785 (1987-04-01), Benjaminson
patent: 5565821 (1996-10-01), Murtojarvi
patent: 5900788 (1997-12-01), Hagemeyer

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