Fully differential PWM/PFM power converter control

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11329618
APP PUB NO 20220094318A1
SERIAL NO

17028348

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Abstract

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Differential control circuitry configured to control the operation of a power converter. The control circuitry of this disclosure is configured to receive two differential feedback signals from a fully differential amplifier. The amplifier receives an output voltage (Vout) from the switched mode power supply as well as a reference voltage (Vref). When Vout is less than Vref, the control circuitry may output a pulse width modulation (PWM) control signal to the switched mode power supply with a duty cycle of the PWM control signal based on a relative difference between a positive difference voltage and a negative difference voltage. When Vout is greater than Vref, the control circuitry may output a pulse frequency modulation (PFM) control signal to the switched mode power supply with a switching time of the PFM control signal based on a relative difference between the positive difference voltage and the negative difference voltage.

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Patent Owner(s)

  • INFINEON TECHNOLOGIES AG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dal, Bianco Davide Schio, IT 3 2
Garbossa, Cristian Bressanone, IT 26 160

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