Power amplifier ramp up method and apparatus

Details Power amplifier ramp up method and apparatus Power amplifier ramp up method and apparatus

1991-06-03

1992-09-22

LaRoche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including gain control means

330129, 455126, 455127, H03G 330

Patent

active

051500752

ABSTRACT:
The present disclosure includes a discussion of a power amplifier controller which powers up a power amplifier (203) without a substantial burst of frequency noise. The controller has a RF output power detector (211) which generates a signal (229) correllated to the power level of the power amplifier (203). This signal (229) is compared (215) to a reference signal (213) to determine if the power amplifier (203) is active. The signal (227) generated by this comparator (215) is used to determine the voltage level of the Automatic Output Control (AOC) signal (231).

REFERENCES:
patent: 4367443 (1983-01-01), Hull et al.
patent: 4570127 (1986-02-01), Tanimoto et al.
patent: 4592073 (1986-05-01), Watanabe
patent: 4602218 (1986-07-01), Vilmur et al.
patent: 4985686 (1991-01-01), Davidson et al.
patent: 4992753 (1991-02-01), Jenson et al.
patent: 5038112 (1991-08-01), O'Neill
patent: 5043672 (1991-08-01), Youn

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