MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202541025857 A) filed by Samsung Electronics Co. , Ltd. on March 21, 2025, for Fly-Cap Refresh Circuit For Buck-Boost Converter.
Inventors include Sanampalle, Gowtham; Gonapati, Kishan Reddy; and Kamalapuram, Adinarayana.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: A fly-cap refresh circuit for a buck-boost converter is disclosed herein. The fly-cap refresh circuit includes a first fly capacitor, a second fly capacitor, and a plurality of refresh switches. The first fly capacitor is connected to a buck capacitor of a buck converter of the buck-boost converter, and configured to prevent a discharge of the buck capacitor during one or more idle periods of a first switching node. The second fly capacitor is connected to a boost capacitor of a boost converter of the buck- boost converter, and configured to prevent a discharge of the boost capacitor during the one or more idle periods of the first switching node. The plurality of refresh switches is configured to activate based on an operational mode of the buck-boost converter to control enabling the fly-cap refresh circuit.
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