PWM Signal power amplifier

Details PWM Signal power amplifier PWM Signal power amplifier

1979-05-22

1981-02-03

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including class d amplifier

330 10, H03F 3217

Patent

active

042491363

ABSTRACT:
A PWM (pulse width modulated) signal power amplifier includes an input terminal supplied with a PWM signal directly, an integrator, a zero-cross switch and a pulse amplifier. A negative feedback circuit is provided between the input of the integrator and the output of the pulse signal amplifier so as to provide a low distortion in spite of the voltage fluctuations in the operating voltage to the pulse amplifier.

REFERENCES:
patent: 4021745 (1977-05-01), Suzuki et al.

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