On the practical design of a single-stage single-switch isolated PFC regulator based on sliding mode control

Hao-Ran Wang, G. Zhu, Donghuai Zhang, Wei Chen, Yu Chen
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引用次数: 5

Abstract

In this paper, the variable-bandwidth hysteresis-modulation sliding-mode (VB-HM-SM) method is applied for a single-stage single-switch isolated power-factor-correction (PFC) regulator. In the regulator, the dc-dc stage works in CCM and is regulated by PWM, while the ac-dc boost stage works in DCM and is regulated by PFM. However, both PWM and PFM are realized by a sliding mode (SM) controller, and thus, unity power factor and fast output voltage regulation can be simultaneously achieved. Various aspects of the design, including the associated practical problems and the proposed solutions are detailed. A simple and easy-to-follow design procedure is also described. Simulation results are presented to illustrate the design procedure.
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基于滑模控制的单级单开关隔离PFC稳压器的实际设计
本文将变带宽迟滞调制滑模(VB-HM-SM)方法应用于单级单开关隔离功率因数校正(PFC)稳压器。在稳压器中,直流-直流级工作在CCM中,由PWM调节,交流-直流升压级工作在DCM中,由PFM调节。然而,PWM和PFM都是通过滑模控制器实现的,因此可以同时实现统一的功率因数和快速的输出电压调节。详细介绍了设计的各个方面,包括相关的实际问题和提出的解决方案。还描述了一个简单易懂的设计过程。仿真结果说明了设计过程。
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