ABSTRACT A power factor corrected (PFC) Canonical Switching Cell (CSC) converter is proposed for low power consumer light-emitting diode (LED) lighting applications. The proposed CSC converter is intended to operate in discontinuous inductor current mode (DICM) to realize improved power quality performance. In low power consumer lighting applications, the CSC converter is more suitable due to its many benefits such as high energy storing capability, high input and low output impedance as compared to other buck-boost converters. This paper describes the different performance parameters of the proposed converter. Application of lighting load is also examined in view of achieving improved power quality over the wide input AC mains voltage. The measured converter efficiency of a laboratory prototype is found to be 93.8% and total harmonic distortion (THD) of the input current is observed only 6.52% at 230 V AC mains for a prototype of 50 W. Due to less switching losses, the proposed converted has shown much-improved results as compared to the conventional buck-boost converter.

中文翻译：

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低功耗消费类照明应用中的通用输入 PFC CSC 转换器

摘要 提出了一种功率因数校正 (PFC) 规范开关单元 (CSC) 转换器，用于低功耗消费者发光二极管 (LED) 照明应用。建议的 CSC 转换器旨在在不连续电感器电流模式 (DICM) 下运行，以实现改进的电源质量性能。在低功耗消费类照明应用中，CSC 转换器更适合，因为与其他降压-升压转换器相比，它具有许多优点，例如高能量存储能力、高输入和低输出阻抗。本文描述了所提出的转换器的不同性能参数。考虑到在宽输入交流电源电压上实现改进的电能质量，还检查了照明负载的应用。实验室原型的测得转换器效率为 93。