Pulse width modulation decoder circuit, corresponding device and methods of operation

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United States of America

PATENT NO 11996851
SERIAL NO

17556495

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Abstract

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A circuit for decoding a pulse width modulated (PWM) signal generates an output signal switching between a first and second logic values as a function of a duty-cycle of the PWM signal. Current generating circuitry receives the PWM signal and injects a current to and sinks a current from an intermediate node as a function of the values of the PWM signal. A capacitor coupled to the intermediate node is alternatively charged and discharged by the injected and sunk currents, respectively, to generate a voltage. A comparator circuit coupled to the intermediate node compares the generated voltage to a comparison voltage and drives the logic values of the output signal as a function of the comparison.

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Patent Owner(s)

Patent OwnerAddress
STMICROELECTRONICS S R L20864 AGRATE BRIANZA (MB)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Floriani, Ivan Milan, IT 11 0
Poletto, Vanni Milan, IT 82 404

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