Passive PFC LED Lighting Supply

Focus:

A design based on the TinySwitch-III chip (TNY279PN) implements a 185-Vac to 265-Vac input, 10-V 1.8-A output power supply for driving six, high-power Luxeon LEDs. This flyback design includes passive power factor correction, achieves >82% efficiency, and requires only 40 components.

What you’ll learn:

• How to build a power-factor-corrected, 240-Vac nom. input, 10-V, 1.8-A dc output power supply for driving six Luxeon LEDs

Notes:

Design Idea DI-130

View the Source

Author & Publication:

no author specified, Power Integrations, Vendor website, Dec 01 2007

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