Single stage PFC high brightness LED driver circuit achieving 700 mA current

Published:2011/7/19 8:49:00 Author:Fiona | Keyword: Single stage, high brightness, driver | From:SeekIC

Figure is single-stage PFC LED driver power supply.With the increasing use of LED,especially extensive use of the offline type switch power supply composed of a sample circuit,it surely makes the power grid's power factor severely reduce and the power grid's reactive power consumption increase finally.Therefore increasing the switching power supply power factor and reducing harmonic current have become the development direction of LED lighting power supply in the future.This section describes using the falling rise and fall without transformer single-stage circuit,it can provide high conversion efficiency,it is low-cost,high reliability and high-power LED driver power supply.



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