US 10,476,375 B2Granted

Multiple output integrated power factor correction

AssigneeTexas Instruments Incorporated

InventorsShamim Choudhury, Zhenyu Yu, Zhong Ye

Life of this patent

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Abstract

A multiple-output integrated power factor correction system includes, for example, a processor that is formed in a substrate and is arranged to monitor each voltage output of two or more output stages of a power supply and in response to generate an individual voltage error signal for each monitored output stage. A combined output voltage error signal is generated in response to each of the individual voltage error signals. The voltage input to the power supply and the total inductor current of the power supply are monitored and used to generate a combined output voltage control signal in response to the monitored input voltage total inductor current as well as the combined output voltage error control signal. Each individual output voltage control signal for each monitored output stage is generated in response to each of the respective generated individual voltage error signals.

Claims7

Dependent claims

A power supply system, comprising:

a power supply that is electrically coupled to a substrate;
and
a processor that is formed in the substrate and is arranged to monitor each voltage output of two or more output stages of the power supply and in response to generate an individual voltage error signal for each monitored output stage, is arranged to generate a combined output voltage error signal in response to each of the respective generated individual voltage error signals, is arranged to monitor a voltage input to the power supply and to monitor a total inductor current of the power supply and to generate a combined output voltage control signal in response to the monitored input voltage and the monitored total inductor current and the combined output voltage error control signal, and is arranged to generate an individual output voltage control signal for the each monitored output stage in response to the each of the respective generated individual voltage error signals.

Dependencies are inferred from the claim text.

Facts

Application: 15/876,351Filed 22 Jan 2018 · division
Priority: 31 Dec 2013
Published: US 2018/0145584 A124 May 2018
Granted: 12 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H02M 1/4225
Arrangements for improving power factor of AC input: using a non-isolated boost converter
H02M 1/088
Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters: for the…
H02M 1/4208
Circuits or arrangements for compensating for or adjusting power factor in converters or inverters: arrangements for improving power factor of AC…
H02M 7/217
Using devices of a triode or transistor type requiring continuous application of a control signal: using semiconductor devices only

Family

Application61/922,781Us provisional application · filed 31 Dec 2013
Application14/167,945Parent of this division · filed 29 Jan 2014
US 2018/0145584 A1Pre-grant publication · published 24 May 2018
US 9,912,229 B2Parent of this division
US 2015/0188413 A1Published application
US 10,476,375 B2This patent

From the US filing history. Foreign family members aren’t listed.