Method for operating a non-isolated switching converter having synchronous rectification capability suitable for power factor correction applications
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United States of America Patent
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Apr 25, 2017
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N/A
app pub date -
May 30, 2013
filing date -
Jun 13, 2012
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Abstract
A power factor correction (PFC) boost circuit. The PFC boost circuit can include a first switching device, a second switching device, a first gate driver coupled to the first switching device, a second gate driver coupled to the second switching device, and a PFC controller configured to control the first and second gate drivers. The PFC controller will utilize a new technique, referred to herein as “predictive diode emulation” to control the switching devices in a desired manner and to overcome inefficiencies and other problems that might arise using traditional diode emulation. The PFC controller is configured to operate in synchronous and non-synchronous modes.
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