METHODS FOR CONTROLLING POWER STAGE OF POWER AMPLIFIER AND RELATED APPARATUSES

A controller of a power amplifier includes an oversampler for oversampling an incoming digital signal to generate an oversampled signal, a controlling module for generating a first control signal and a second control signal according to the oversampled signal, a PWM circuit for generating a first PW...

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Bibliographic Details
Main Authors CHIU SHU-YEH, WU POIANG
Format Patent
LanguageEnglish
Published 29.05.2008
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:A controller of a power amplifier includes an oversampler for oversampling an incoming digital signal to generate an oversampled signal, a controlling module for generating a first control signal and a second control signal according to the oversampled signal, a PWM circuit for generating a first PWM signal according to the first control signal, and a pulse width adjuster for adjusting a pulse width of the first PWM signal according to the second control signal to generate a second PWM signal for controlling a power stage of the power amplifier.
Bibliography:Application Number: US20070850664