Class-D power amplifier capable of eliminating excessive...

Details Class-D power amplifier capable of eliminating excessive... Class-D power amplifier capable of eliminating excessive...

2006-09-26

2006-09-26

Lee, Benny (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S20700P

Reexamination Certificate

active

07113030

ABSTRACT:
A class-D power amplifier, which prevents excessive response phenomenon from occurring when returning to a steady state from an abnormal state and an amplification method of the class-D power amplifier are provided. The class-D power amplifier prevents an integral control circuit or a proportional integral control circuit from becoming saturated by using sub-negative feedback loop operations, without using a high-capacity output blocking switch in an initial state or an abnormal state. Thus, suppressing pop noise due to the excessive response phenomenon caused when the class-D power amplifier returns to the steady state from the initial state or the abnormal state and reducing power consumption.

REFERENCES:
patent: 5805020 (1998-09-01), Danz et al.
patent: 6489840 (2002-12-01), Botti et al.
patent: 1 184 973 (2002-06-01), None
patent: 1020030015764 (2003-02-01), None

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