No need to fear: SEPIC outperforms the flyback

Focus:

When choosing a topology for nonisolated applications where input voltage varies above and below the output voltage, many designers opt for the familiar flyback rather risk attempting a design based on the more mysterious SEPIC (single-ended primary-inductance converter). But a comparison of the two topologies using actual design examples illustrates how the SEPIC topology is often the better choice.

What you’ll learn:

• How to compare performance of flyback and SEPIC topologies

View the Source

Author & Publication:

John Betten and Robert Kollman,Texas Instruments, Planet Analog, Jan 25 2006

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