现代电子技术2012，Vol.35Issue(16)：164-166,170,4.
大功率LED恒流驱动电源设计
Design for constant-current power supply of high-power LED
张准 1陈晓冰1
作者信息
- 1. 华南师范大学信息光电子科技学院,广东广州 510631
- 折叠
摘要
Abstract
In order to drive the high-power LED, a constant-current-driven switching power supply based on the flyback principle was designed, which includes the design of flyback power supply circuit, the selection of switching power supply transformer, the design of power factor correcting circuit and the design of the various protection circuits. The PCB design and prototype manufacture of the power supply were completed by taking into consideration of EMI and heat dissipation. The experiments of output testing and power factor testing were performed. The results of the experiments prove that the power output is stable, the output voltage is 41, 8 V, current is 338 mA, the power factor is 0. 86, and that twelve 1 W high-power LEDs can be lightened. This design has a reference value to the application of the high-power LEDs.关键词
大功率LED/恒流驱动电源/开关电源/功率因数校正Key words
high-power LED/constant-curren/power supply/switching power supply/power factor correction分类
信息技术与安全科学引用本文复制引用
张准,陈晓冰..大功率LED恒流驱动电源设计[J].现代电子技术,2012,35(16):164-166,170,4.
