Variable frequency class D modulator with built in soft clipping

Details Variable frequency class D modulator with built in soft clipping Variable frequency class D modulator with built in soft clipping

1998-10-15

2000-08-22

Lee, Benny

Amplifiers

Modulator-demodulator-type amplifier

330251, H03F 338

Patent

active

061078751

ABSTRACT:
A class D amplifier 100 has an integrator 10, a comparator 12, and a frequency compensation and gain control (FCGC) circuit 40. The FCGC circuit 40 senses the output and reduces the gain in order to keep the sampling frequency high enough to avoid audio artifacts.

REFERENCES:
patent: 4571551 (1986-02-01), Trager
patent: 4600891 (1986-07-01), Taylor et al.
patent: 5160896 (1992-11-01), McCorkle
patent: 5410592 (1995-04-01), Wagner et al.
patent: 5523715 (1996-06-01), Schrader
patent: 5767740 (1998-06-01), Fogg
patent: 5805020 (1998-09-01), Danz et al.
patent: 5838193 (1998-11-01), Myers et al.

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