Low distortion amplifier circuit with improved output power

Details Low distortion amplifier circuit with improved output power Low distortion amplifier circuit with improved output power

1997-06-02

1999-06-29

Mullins, James B.

Amplifiers

With amplifier bypass means

330149, H03F 126

Patent

active

059173750

ABSTRACT:
A low distortion amplifier circuit employing a main amplifier and a correction amplifier in a feed-forward loop, is particularly adapted for amplifying multi-tone signals. The main amplifier produces fundamental frequency power along with undesirable distortion products. The correction amplifier provides correction signals at the distortion product frequencies to cancel the distortion products of the main amplifier. In addition, the correction amplifier produces fundamental frequency power which is combined with the fundamental frequency power of the main amplifier, thereby increasing the amplifier circuit output power.

REFERENCES:
patent: 4583049 (1986-04-01), Powell
patent: 4629996 (1986-12-01), Watanabe et al.
patent: 4926136 (1990-05-01), Olver
patent: 5304945 (1994-04-01), Myer
European Search Report, EP 96 30 6220, Dec. 6, 1996.

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