一款最大功率150W可实现92%能效的LED路灯电源设计.pdf

Design Example Report

150 W Power Factor Corrected LLC Power
Title
Supply Using HiperPLC (PLC810PG)
140 – 265 VAC Input; 150 W (48 V at A –
Specification
A) Output
Application LED Street Light
Author Applications Engineering Department
Document
DER-212
Number
Date May 11, 2009
Revision

Summary and Features
• Integrated PFC and LLC controller
• Continuous mode PFC using small low-cost ferrite core and wire
• Frequency and Phase locked PFC and LLC for ripple cancellation in bulk capacitor for
reduced ripple current, reduced bulk capacitor size and reduced EMI filter cost
• Tight LLC duty-cycle matching
• Tight LLC dead-time control
•>95% full load PFC efficiency at 140 VAC using conventional ultrafast rectifier
•>95% full load LLC efficiency
•>92% full load system efficiency





PATENT INFORMATION
The products and applications illustrated herein (including transformer construction and circuits external to the products) may be covered
by one or more . and foreign patents, or potentially by pending . and foreign patent applications assigned to Power Integrations. A
complete list of Power Integrations' patents may be found at . Power Integrations grants its customers a license under
certain patent rights as set forth at <.htm>.

Power Integrations
5245 Hellyer Avenue, San Jose, CA 95138 USA.
Tel: +1 408 414 9200 Fax: +1 408 414 9201

DER-212, 150 W Street Light Power Supply Using PLC810PG 11-May-09

Table of Contents
1 Introduction.................................................................................................................4
2 Power Supply Specification ........................................................................................7
3 Schematic...................................................................................................................8
4 Circuit Description ......................