System and method for controlling single inductor dual output DC/DC converters

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8441148
APP PUB NO 20110187189A1
SERIAL NO

12796334

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Abstract

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A DC to DC converter comprises voltage regulation circuitry for generating at least two output voltages responsive to an input voltage. The voltage regulation circuitry further includes a plurality of main switches connected to receive the input voltage. A plurality of auxiliary switches is connected to provide the at least two output voltages. A single inductor is connected between the plurality of main switches and the plurality of auxiliary switches. A dual-output PWM controller provides a first PWM control signal for controlling the operation of the plurality of main switches responsive to a first feedback voltage from a first output voltage using a first control loop and provides a second PWM control signal for controlling the operation of the plurality of auxiliary switches responsive to a second feedback voltage from a second output voltage using a second control loop. Current mode control can be used for each control loop to reduce the cross regulation problem.

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Patent Owner(s)

  • INTERSIL AMERICAS INC.;INTERSIL AMERICAS LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Moussaoui, Zaki San Carlos, US 70 456
Qin, Jifeng San Jose, US 10 89

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