SEPIC Converter Circuit Basics

Focus:

This 7-minute video explains operation of SEPIC converters including discussion on sizing of the coupling capacitor and use of coupled inductors or passive components to damp the circuit. Video presents the schematic of a practical design example based on the LM3481 controller, and discusses its operation and design considerations.

What you’ll learn:

• How to understand operation of a SEPIC converter
• How to understand options for damping a SEPIC converter

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Author & Publication:

Bob Sheehan, National Semiconductor, Vendor website, Mar 02 2010

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