Journal of Power Electronics

  • 제17권3호
  • /
  • Pages.579-589
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  • 2017
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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A Novel Switched Capacitor High Step-up dc/dc Converter Using a Coupled Inductor with its Generalized Structure

  • Hamkari, Sajjad (Faculty of Electrical and Computer Engineering, University of Tabriz) ;
  • Moradzadeh, Majid (Faculty of Electrical and Computer Engineering, University of Tabriz) ;
  • Zamiri, Elyas (Faculty of Electrical and Computer Engineering, University of Tabriz) ;
  • Nasir, Mehdi (Faculty of Electrical Engineering, Shahid Madani Azarbaijan University) ;
  • Hosseini, Seyed Hossein (Engineering Faculty, Near East University)
  • 투고 : 2016.07.29
  • 심사 : 2016.11.25
  • 발행 : 2017.05.20
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초록

In this study a new high step-up dc-dc converter is presented. The operation of the proposed converter is based on the capacitor switching and coupled inductor with a single active power switch in its structure. A passive voltage clamp circuit with two capacitors and two diodes is used in the proposed converter for elevating the converter's voltage gain with the recovered energy of the leakage inductor, and for lowering the voltage stress on the power switch. A switch with a low $R_{DS}$ (on) can be adopted to reduce conduction losses. In the generalized mode of the proposed converter, to reach a desired voltage gain, capacitor stages with parallel charge and series discharge techniques are extended from both sides of secondary side of the coupled inductor. The proposed converter has the ability to alleviate the reverse recovery problem of diodes with circuit parameters. The operating principle and steady-states analyses are discussed in detail. A 40W prototype of the proposed converter is implemented in the laboratory to verify its operation.

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참고문헌

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