器件名称: DER-92
功能描述: 0.5W Non-Isolated Buck-Boost Converter using the LNK302P
文件大小: 251.96KB 共14页
简 介:Design Example Report
Title Specification Application Author Document Number Date Revision 0.5W Non-Isolated Buck-Boost Converter using the LNK302P Input: 85-265 VAC Output: 0.5W, 40mA Constant current LED Driver Power Integrations Applications Department DER-92 August 11, 2005 1.0
Summary and Features Low component count (only 9 components required) Low Cost, light weight, compact solution No Opto-Coupler required Open loop operation High efficiency (~70%) Meets EN55022 B EMI limits with > 8 dB margin
The products and applications illustrated herein (including circuits external to the products and transformer construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at www.powerint.com.
Power Integrations 5245 Hellyer Avenue, San Jose, CA 95138 USA. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com
DER-92
0.5W, 40mA, Open Loop LED Driver
August 11, 2005
Table Of Contents
1 2 3 4 Introduction .................................................................................................................3 Power Supply Specification ........................................................................................4 Schematic ...................................................................................................................5 Circuit Description...........................……
