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5 Analog Applications JournalTexas instruments Incorporated2Q 2012 high -Performance Analog ProductsControlling switch -node ringing in synchronous buck convertersIntroductionAs power-supply efficiency becomes more important, faster switching speeds are necessary to reduce the losses. However, as switching speeds are increased, there are negative trade-offs that must be taken into account, such as a consequential increase in electromagnetic interfer-ence (EMI).In a synchronous buck converter , fast-switching field-effect transistors (FETs) can experience significant voltage overshoots and ringing on the switch node.
5 Analog Applications Journal Texas Instruments Incorporated 2Q 2012 www.ti.com/aaj High-Performance Analog Products Controlling switch-node ringing in synchronous buck converters
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