As a street‐lighting source, LED has the characteristics of energy saving and environmental protection and it plays an important role in replacing traditional high‐energy‐consumption high‐pressure mercury lamps. This paper designs and accomplishes a cost‐effective LED driver featuring high‐power‐factor and soft‐switching for use in energy‐efficient streetlights. The LED driver proposed in this paper merges a totem‐pole bridgeless boost (TPBB) converter with power‐factor correction (PFC) and a half‐bridge series‐resonant (HBSR) converter with a bridge rectifier into a single‐stage power‐conversion circuit. Besides, the presented LED driver attains high power‐factor of the utility‐line source and an advantageous zero‐voltage switching (ZVS) feature on power switches. Moreover, a prototype circuit is designed and carried out to provide a 165 W (235 V/0.7 A)‐rated LED street‐light lamp with a utility‐line voltage of 110 V. Satisfyingly experimental results have demonstrated that high power factor, low utility‐line current total‐harmonic‐distortion (THD), and high circuit efficiency are achieved in the presented cost‐effective LED driver suitable for energy‐saving street‐lighting applications.

中文翻译：

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具有成本效益的电子照明驱动器，具有高功率因数和软开关，可为LED路灯提供电源

作为路灯光源，LED具有节能环保的特点，在替代传统的高能耗高压汞灯中发挥着重要作用。本文设计并实现了一种具有成本效益的LED驱动器，该驱动器具有高功率因数和软开关功能，可用于节能路灯。本文提出的LED驱动器将具有功率因数校正（PFC）的图腾柱无桥升压（TPBB）转换器和具有桥式整流器的半桥串联谐振（HBSR）转换器合并为单级功率转换电路。此外，本文提出的LED驱动器具有很高的公用电源功率因数，并且在电源开关上具有有利的零电压开关（ZVS）功能。而且，