Higher Efficiency in Lighting through Primary Side Regulation
by Peter Hsieh, Leon Lee and Kevin Hsueh; Fairchild Semiconductor, Bodo's Power Systems, Mar 01 2009
Focus:
When driving high-brightness LEDs in solid-state lighting (SSL) applications, designing an offline LED power supply based on primary-side regulation can reduce parts count and board space requirements versus the conventional approach based on secondary-side regulation. Secondary-side regulation also permits improved efficiency. This article describes the operating principles and benefits of Fairchild's implementation of primary-side regulation and discusses the performance achieved by its FSEZ1016A controller IC. The article begins with a discussion of the benefits of LED lighting.
What you’ll learn:
- How to understand the operation abd benefits of primary-side regulation for offline LED power supplies
View this Source (requires a PDF Viewer installed on your device)
© 2025 How2Power. All rights reserved.