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首页> 外文会议>International Symposium on Computer, Consumer and Control >A Novel Single-Stage High-Power-Factor LED Power Supply with Soft-Switching Feature for Streetlight Applications
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A Novel Single-Stage High-Power-Factor LED Power Supply with Soft-Switching Feature for Streetlight Applications

机译：一种新颖的单级高功率因子LED电源，具有用于路灯应用的软切换功能

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This paper presents a novel single-stage LED power supply with soft-switching feature suitable for streetlight applications. The proposed AC-DC LED power supply integrates an interleaved buck converter with coupled inductors and a half-bridge LLC resonant converter into a single-stage power-conversion circuit with reduced voltage stress on the DC-bus capacitor and power switches. Furthermore, coupled inductors in the interleaved buck converter are designed to be operated in discontinuous-conduction mode (DCM) for carrying on power-factor-correction, and the half-bridge LLC resonant converter features zero-voltage switching (ZVS) to reduce switching losses of power switches, and zero-current switching (ZCS) to decrease conduction losses of power diodes. A 144 W (36V14A)-rated LED prototype circuit is successfully developed and implemented for supplying an LED streetlight module and operating with a utility-line input voltage of 110 V. High power factor and satisfying efficiency are achieved in the proposed LED power supply for streetlight applications.
机译：本文介绍了一种新型单级LED电源，具有适用于路灯应用的软开关功能。所提出的AC-DC LED电源将具有耦合电感器的交织降压转换器和半桥LLC谐振转换器集成到单级电力转换电路中，该电源转换电路具有降低的DC总线电容器和电源开关。此外，交织降压转换器中的耦合电感器设计成以不连续导电模式（DCM）操作，用于承载功率计数校正，半桥LLC谐振转换器具有零电压切换（ZVS）以减少切换电源开关的损耗和零电流切换（ZCS）降低电力二极管的传导损耗。成功开发了144W（36V14A）的LED原型电路，并实现了用于提供LED路灯模块，并使用电线输入电压为110 V.高功率因数和满足效率在提出的LED电源中实现街灯应用。

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