High efficiency power amplifying apparatus with phase compensati

Details High efficiency power amplifying apparatus with phase compensati High efficiency power amplifying apparatus with phase compensati

1999-03-31

2000-12-26

Pascal, Robert

Amplifiers

Modulator-demodulator-type amplifier

330251, H03F 338

Patent

active

061665967

ABSTRACT:
A synchronously driven linear power amplifier (6) parallel to class D power amplifier (2) achieves an active filter equivalent, minimizing the scale of the passive filter (3), and effectively suppressing high frequency noise. Signal delay introduced by the passive filter (3) is also compensated by means of a phase compensation circuit (7) for phase compensating an audio signal applied from a signal input terminal (21).

REFERENCES:
patent: 5973556 (1999-10-01), Su

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