Amplifiers – Modulator-demodulator-type amplifier
Reexamination Certificate
2011-04-26
2011-04-26
Nguyen, Patricia (Department: 2817)
Amplifiers
Modulator-demodulator-type amplifier
C330S20700P, C330S075000
Reexamination Certificate
active
07932778
ABSTRACT:
An amplifier generates a tri-level output signal in response to an input signal that is pulse-width modulated. The amplifier is filterless and DC free. A control block supplies a multitude of pulse-width modulated (PWM) signals in response to the received digital input signal. A pair of the PWM signals are applied to the signal generator which in response supplies a third signal to the integrator. The integrator integrates the third signal in accordance with a feedback signal.
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Marvell International Ltd.
Nguyen Patricia
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