Switching amplifier closed loop dual comparator modulation techn

Details Switching amplifier closed loop dual comparator modulation techn Switching amplifier closed loop dual comparator modulation techn

1996-09-27

1998-06-16

Mottola, Steven

Amplifiers

Modulator-demodulator-type amplifier

330251, H03F 338, H03F 3217

Patent

active

057677409

ABSTRACT:
A dual comparator pwm audio amplifier has a differential-to-single ended feedback amplifier 40 coupled to an integrating amplifier 42 to provide more precise feedback control for the comparators 12, 16.

REFERENCES:
patent: 3579132 (1971-05-01), Ross
patent: 4004246 (1977-01-01), Hamada
patent: 4059807 (1977-11-01), Hamada
patent: 4249136 (1981-02-01), Suzuki et al.
patent: 4403196 (1983-09-01), Grandmont
patent: 4554512 (1985-11-01), Aiello
patent: 4949048 (1990-08-01), Tokumo et al.
patent: 5014016 (1991-05-01), Anderson
patent: 5115205 (1992-05-01), Holmes
patent: 5160896 (1992-11-01), McCorkle
patent: 5410592 (1995-04-01), Wagner et al.
patent: 5479337 (1995-12-01), Voigt

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