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Dual Voltage Clamp Circuit

IP.com Disclosure Number: IPCOM000035357D
Original Publication Date: 1989-Jul-01
Included in the Prior Art Database: 2005-Jan-28

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Related People

Covi, KR [+details]


This article describes a clamp circuit for use in high-power dual- switch converters that provides effective clamping of the voltage across the switches at turn-off while avoiding the formation of a bulk tank circuit which often arises with the addition of a traditional "bulk decoupling" capacitor. The associated large circulating currents are therefore eliminated, allowing the selection of a bulk capacitor with significantly lower ripple current ratings than would otherwise be required.