Power supply with power factor correction bypass

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11831237
APP PUB NO 20230188031A1
SERIAL NO

17656184

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Abstract

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A power supply includes a power factor correction (PFC) circuit, a PFC bypass circuit, and a decision circuit. The PFC circuit is configured to receive an input current from a power source and, when enabled, reduce current harmonics in the input current by shaping an input sinusoidal current waveform to match a phase and shape of a sinusoidal input voltage waveform. The PFC bypass circuit is configured to bypass the PFC circuit when the PFC circuit is disabled. The decision circuit includes a detection circuit configured to detect an output load of the power supply and is configured to output a PFC enable command based at least in part on the detected output load being greater than or equal to a threshold value and a determination that an input voltage of the power source is greater than or equal to a threshold value.

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Patent Owner(s)

Patent OwnerAddress
MICROSOFT TECHNOLOGY LICENSING LLCONE MICROSOFT WAY REDMOND WA 98052

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Depue, Marshall T Redmond, US 25 589
Fong, Chee Kiong Saratoga, US 18 73
Shew, Geoffrey Jason Redmond, US 8 3
Tin, Suet Fong Redmond, US 14 62
Volkman, Michael Roy Seattle, US 5 2

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