FET oscillator using voltage and temperature compensated amplifier

  • US 5,241,286 A
  • Filed: 09/28/1992
  • Issued: 08/31/1993
  • Est. Priority Date: 08/28/1991
  • Status: Expired due to Term
First Claim
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1. A FET oscillator system having an oscillator with an active amplifier element and a feedback network, said an oscillator having oscillator output frequency and receiving a frequency control signal, said oscillator output frequency having first frequency variations induced by temperature variations and second frequency variations induced by variations in said frequency control signal, comprising:

  • adjusting means for providing said variations in said frequency control signal in accordance with said temperature variations;

    said adjusting means having reference voltage means for determining said variations in said frequency control signal in accordance with said temperature variations;

    means within said active amplifier element for receiving said variations in said frequency control signal to induce said second frequency variations; and

    ,said second frequency variations compensating said first frequency variations to provide a constant oscillator output frequency.

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