Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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A Comparative Study of Operation Characteristics of Active Clamp Forward Converter Based on Loss analysis

  • Oh, Deog-Jin (Dept. of Electrical Engineering Hanyang University) ;
  • Kim, Hee-Jun (Dept. of Electrical Engineering Hanyang University)
  • Published : 1998.10.01
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Abstract

In this paper, operation characteristics of the Zero-voltage-Switching(ZVS) mode and Non-Zero-Voltage-Switching (NZVS) mode of the active clamp (ACL) forward converter are compared through the loss analysis. The losses of semiconductor devices, transformer and passive elements of the converter are analyzed and compared for each type of operation mode. In order to verify the validity of the analysis, we have built a 50W ACL forward converter and measured the losses of the converter. From the experiment it is known that the ACL forward converter shows nearly same loss distribution for both of operation modes

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