Amplifiers – Hum or noise or distortion bucking introduced into signal...
Patent
1992-07-31
1994-07-12
Mottola, Steven
Amplifiers
Hum or noise or distortion bucking introduced into signal...
330136, H03F 126
Patent
active
053292448
ABSTRACT:
A linear compensating circuit comprises a first level detection circuit for detecting the level of an input signal to an amplifier, a second level detection circuit for detecting the level of an output signal from the amplifier, an amplitude compensating circuit for controlling the amplitude of the input signal in accordance with the difference between the signal level detected by the first detection circuit and the signal level detected by the second level detection circuit for improving the linearity of an input-output characteristic of the amplifier, and a phase compensating circuit for controlling the phase of the input signal in accordance with the signal level detected by the second detection circuit. The linear compensating circuit compensates for both amplitude and phase and, as a result, the degradation of phase characteristic caused by amplitude compensation can be prevented, resulting in a reduction in the distortion of the output signal of the amplifier even when it is being operated in the vicinity of the saturation range. This linear compensating circuit is effective when applied to a power amplifier, particularly to a high frequency power amplifier.
REFERENCES:
patent: 5101172 (1992-03-01), Ikeda et al.
patent: 5121077 (1992-06-01), McGann
patent: 5124665 (1992-06-01), McGann
Fujita Noriyuki
Tanaka Masahiko
Mottola Steven
NEC Corporation
LandOfFree
Linear compensating circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Linear compensating circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear compensating circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-399458