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William Hemena

IBM

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Publication

Featured researches published by William Hemena.

Archive | 2001

Power factor correction (PFC) circuit that eliminates an inrush current limit circuit

Randhir S. Malik; William Hemena

Archive | 1999

Boost circuit which includes an additional winding for providing an auxiliary output voltage

William Hemena; Randhir S. Malik

Archive | 2001

Multiphase zero-volt-switching resonant DC-DC regulator

Randhir S. Malik; William Hemena; Thai Quoc Ngo; Scott Douglas Strand

Archive | 1997

Computer system having power supply primary sense to facilitate performance of tasks at power off

Paul Harrison Benson; Duane Thomas Crump; William Hemena; Duane Edward Norris; Steven Taylor Pancoast

Archive | 2001

Circuit for limiting inrush current to a power source

Randhir S. Malik; William Hemena

Archive | 1999

Boost doubler circuit wherein an AC bridge rectifier is not required

William Hemena; Randhir S. Malik

Archive | 1994

AC line stabilization circuitry for high power factor loads

William Hemena; Randhir S. Malik

Archive | 2001

Fault tolerant active current sharing

William Hemena; Randhir S. Malik

Archive | 2001

High efficiency multiple input voltage sources power supply

Randhir S. Malik; Trung M. Nguyen; William Hemena

Archive | 2000

Method and apparatus for using an energy reserve to provide voltage to a power factor correction circuit in the event of a power interuption

Randhir S. Malik; William Hemena

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Collaboration

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Randhir S. Malik

IBM

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Eino A. Lindfors

IBM

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Scott Douglas Strand

IBM

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Thai Quoc Ngo

IBM

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Cecil C. Dishman

IBM

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Diep N. Ho

IBM

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Duane Edward Norris

IBM

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Duane Thomas Crump

IBM

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Kevin R. Covi

IBM

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Paul Harrison Benson

IBM

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