Importance

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Abstract

A power supply includes a first and second switching node, a first power switch and a second power switch, and a first bootstrap capacitor, the first bootstrap capacitor including one end connected to the first switching node, a third and a fourth power switch, and a second bootstrap capacitor, the second bootstrap capacitor including one end connected to the second switching node, and a charge sharing circuit storing a charge using a power supply voltage, providing a first charge sharing path for the first bootstrap capacitor from the stored charge based on a first voltage charged in the first bootstrap capacitor, and to provide a second charge sharing path for the second bootstrap capacitor from the stored charge based on a second voltage charged in the second bootstrap capacitor. The first charge sharing path and the second charge sharing path include a common charge sharing path and overlap each other.

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First Claim