CURRENT MODULATION CIRCUIT

A modulated digital input signal is passed through a conditioning circuit to generate a first input signal. An error amplifier circuit receives the first input signal and a second input signal, and controls the operation of a MOS transistor to generate an output signal that is current modulated. The...

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Bibliographic Details
Main Authors HU YAMU, YOUSSEF TOM, SAHOO NAREN K, CASILLAN ANTHONY JUNIOR, GASPARINI ALESSANDRO
Format Patent
LanguageEnglish
Published 12.11.2015
Subjects
CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Summary:A modulated digital input signal is passed through a conditioning circuit to generate a first input signal. An error amplifier circuit receives the first input signal and a second input signal, and controls the operation of a MOS transistor to generate an output signal that is current modulated. The output signal is sensed to generate a feedback signal. A switching circuit selectively applies the feedback signal as the second input signal in response to a transition of the modulated digital input signal from a first logic state to a second logic state. The switching circuit alternatively selectively applies a fixed reference signal as the second input signal to the error amplifier in response to a transition of the modulated digital input signal from the second logic state to the first logic state.
Bibliography:Application Number: US201414270677