• 제목/요약/키워드: tranformerless converter

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A Voltage-Lift DC-DC Converter with Large Conversion Ratio

  • Kim, Ho-Yeon;Moon, Eun-A;Lee, Yong-Mi;Choi, Youn-ok
    • 전기전자학회논문지
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    • 제23권3호
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    • pp.1054-1060
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    • 2019
  • A extension of the high boost voltage-lift DC-DC converter with large conversion ratio has been proposed in this paper. The proposed extension is combined the switched-inductor cell (SL-cell) and modular voltage cell (MV-cell). The proposed structure can achieve the large voltage conversion without high duty-cycle and the low voltage of the components. Moreover, the PID controller for novel SL-MV voltage-lift DC-DC converter also introduces. This technique a good-performance output voltage can kept constant with an good transient performance when the output load is suddenly changed. In order to prove the theoretical analysis, the experimental setup has been built for the DC load of $150[{\Omega}]$ and $300[{\Omega}]$. In addition, the transient of output voltage has been tested to determine the controller. Experimental results validate the effectiveness of the theoretical analysis proving the satisfactory converter performance.