14 W, LED Driver Power Supply With High Efficiency

Focus:

A design based on the TNY279GNTinySwitch-III chip is presented for a 230-Vac input, 20-V 0.7-A output CV/CC power supply for driving integrated LED lamps. Using a nonisolated flyback topology, this design operates at ambient temperatures up to 75 degrees C.

What you’ll learn:

• How to build a 14-W, 230-VAC input, nonisolated power supply for driving integrated LED lamps

Notes:

Design Idea DI-173. Design meets EU CoC/CEC 2008/ENERGY STAR 2.0 requirements. A more detailed reference design is presented in Design Example Report DER-173 available at http://www.powerint.com/sites/default/files/PDFFiles/der173.pdf

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Author & Publication:

no author specified, Power Integrations, Vendor website, Feb 01 2008

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