Amplifiers – With control of power supply or bias voltage – With control of input electrode or gain control electrode bias
Patent
1983-04-04
1985-04-30
Mullins, James B.
Amplifiers
With control of power supply or bias voltage
With control of input electrode or gain control electrode bias
330279, H03G 320, H03G 310
Patent
active
045147019
ABSTRACT:
An amplitude control circuit of the invention includes a vector composition circuit (18) for composing a cosine-wave signal (e3) from a sine-wave signal (e1) and a control signal generation circuit (20) for providing a control signal (e4) from the sine- and cosine-wave signals (e1, e3) which the control signal (e4) has substantially no ripples. DC level of the control signal (e4) is varied proportional to the amplitude of the sine-wave signal (e1) regardless of the frequency of the sine-wave signal (e1). The amplitude of an amplification control circuit (12) is controlled by the control signal (e4) so that the amplitude of the oscillation output signal (e1) derived from the oscillation circuit (16) is constant.
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patent: 3851276 (1974-11-01), Kaplan
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Solid-State Circuit Handbook Reference Publication, pp. 442-443.
Mottola Steven J.
Mullins James B.
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