Power amplifier

Details Power amplifier Power amplifier

2007-02-01

2009-08-11

Nguyen, Khanh V (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S251000

Reexamination Certificate

active

07573328

ABSTRACT:
A power amplifier is disclosed. In one embodiment, the power amplifier is a Class-D Amplifier having a differential pulse width modulator is disclosed. The differential pulse width modulator has an input for receiving an input signal, a first output for outputting a first signal and a second output for outputting a second signal. A difference between the first signal and the second signal represents the pulse modulated signal. The differential pulse width modulator further has a comparator for comparing the first and second output signals. The comparator switches both the first and second output signal from a high state to a low state, if both the first and second output signals are in a high state.

REFERENCES:
patent: 6707337 (2004-03-01), Noro
patent: 7262658 (2007-08-01), Ramaswamy et al.
patent: 2007/0210861 (2007-09-01), Chen
patent: 2008/0101628 (2008-05-01), Takagishi

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