Systems for pseudo-BD modulation

Details Systems for pseudo-BD modulation Systems for pseudo-BD modulation

2007-10-09

2007-10-09

Choe, Henry (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S251000

Reexamination Certificate

active

11193871

ABSTRACT:
An amplifier system in accordance with an aspect of the present invention comprises a switching amplifier that drives a load with a pulse-width modulated (PWM) output signal that varies between first and second rails based on a first control input signal, and a common mode supply that provides a switching signal that varies between third and fourth rails to maintain a common mode voltage of the load at a level that is between the first and second rails.

REFERENCES:
patent: 6097249 (2000-08-01), Strickland et al.
patent: 6819177 (2004-11-01), Ruha et al.
patent: 7132884 (2006-11-01), Ohkuri et al.
patent: 7135922 (2006-11-01), Zepp
patent: 7142051 (2006-11-01), Sawashi

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