WCSE 2017
ISBN: 978-981-11-3671-9 DOI: 10.18178/wcse.2017.06.190

A Cascade Quadruple Fly-boost for High Voltage Applications

Rathdharshagorn Suriyakulnaayudhya

Abstract— This paper proposed an alternative configuration to produce a high voltage gain of boost converter composed of two stages of quadruple fly-boost converter. The low input DC voltage of 20V boosted up by two-cascade boost converter with the same duty ratio of 0.5 provided the voltage output 40V and 80V respectively. During turn off, an energy stored in an inductor transferred to secondary winding with turn ratio of 3.1, provided the voltage across the inductor secondary winding and then multiplied with quadruple circuit. The total output voltage of the proposed converter was the combination of the voltage from three sections that was 800V. To verify this concept, the voltage gain limitation of conventional boost converter and an 800V 100W cascade quadruple fly-boost converter has been analyzed, designed, and tested. The resulted indicated the duty cycle of the proposed converter at full load was 0.59. The efficiency of the proposed cascade quadruple fly-boost converter was 83.27% and a voltage regulation, controlled with close loop PWM of the proposed converter was 2.7% respectively.

Index Terms— Boost converter, flyback converter, step-up power supply circuit, voltage multiplied

Rathdharshagorn Suriyakulnaayudhya
Department of Electrical Engineering and Computer, Faculty of Science and Engineering, Kasetsart University, THAILAND

ISBN: 978-981-11-3671-9 DOI: 10.18178/wcse.2017.06.17Xsrc="http://www.wcse.org/uploadfile/2019/0823/20190823055609629.png" style="width: 120px; height: 68px;" />[Download]

Cite: Rathdharshagorn Suriyakulnaayudhya, "A Cascade Quadruple Fly-boost for High Voltage Applications," Proceedings of 2017 the 7th International Workshop on Computer Science and Engineering, pp. 1093-1098, Beijing, 25-27 June, 2017.