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New three-phase discontinuous voltage mode cuk power-factor correction converter for low-p946ower applications

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2 Author(s)
Foroozeshfar, R. ; Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran ; Adib, E.

In this study, a new three-phase power-factor correction (PFC) rectifier based on Cuk converter is introduced. The proposed converter operates in discontinuous voltage mode and therefore it has inherent PFC characteristics. Thus, it is not necessary to shape the input current using current shaping techniques. The proposed converter applies only one active switch and once the load is constant, the converter operates with constant duty cycle and constant switching frequency and thus, simple and low cost control and gate drive circuits are required. Also, the switch applied in this converter turns off under zero voltage switching condition. The proposed converter is analysed and theoretical analysis is justified using experimental results.

Published in:

Power Electronics, IET  (Volume:6 ,  Issue: 5 )