ISBN: 978-981-11-3671-9 DOI: 10.18178/wcse.2017.06.190
A Cascade Quadruple Fly-boost for High Voltage Applications
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
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.