Design of 7 W power supply for LED driving based on FSEZ1317
ZHOU You-ping
LUO Zhong-liang
CHEN Guo-jie
Abstract：Utilizing the FSEZ1317 as the main microchip, a 7 W power supply for LED driving with a 35 V, 150 mA output is designed based on the primary side feedback scheme in this paper, including the constant current circuit design, the power-factor correction design, the current foldback circuit design, the overvoltage protective circuit design and the transformer parameter design. The problems of electromagnetic interference, high efficiency design and long-life design are also taken into account. The sample product of this design is completed and has passed the output test and power factor test by the China CEPREI Laboratory. The test results show that this power supply for LED driving has achieved promising performance and is marketable, and can be a reference for similar design.
Keywords：FSEZ1317power supply for LED drivingprimary side feedbackpower-factor correctiontransformer design
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 64-68 )