A KY Converter Integrated with a SR Boost Converter and a Coupled Inductor

Kuo-Ing Hwu; Wen-Zhuang Jiang

A KY Converter Integrated with a SR Boost Converter and a Coupled Inductor

Kuo-Ing Hwu

Wen-Zhuang Jiang

Vol. 17, No. 3, pp. 621-631, May 2017

10.6113/JPE.2019.17.3.621

Coupled inductor

KY converter

Voltage gain

Zero voltage switching

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Abstract

A KY converter integrated with a conventional synchronously rectified (SR) boost converter and a coupled inductor is presented in this paper. This improved KY converter has the following advantages: 1) the two converters use common switches; 2) the voltage gain of the KY converter can be improved due to the integration of a boost converter and a coupled inductor; 3) the leakage inductance of the coupled inductor is utilized to achieve zero voltage switching (ZVS); 4) the current stress on the charge pump capacitors and the decreasing rate of the diode current can be limited due to the use of the coupled inductor; and 5) the output current is non-pulsating. Moreover, the active switches are driven by using one half-bridge gate driver. Thus, no isolated driver is needed. Finally, the operating principle and analysis of the proposed converter are given to verify the effectiveness of the proposed converter.

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Cite this article

[IEEE Style]

K. Hwu and W. Jiang, "A KY Converter Integrated with a SR Boost Converter and a Coupled Inductor," Journal of Power Electronics, vol. 17, no. 3, pp. 621-631, 2017. DOI: 10.6113/JPE.2019.17.3.621.

[ACM Style]

Kuo-Ing Hwu and Wen-Zhuang Jiang. 2017. A KY Converter Integrated with a SR Boost Converter and a Coupled Inductor. Journal of Power Electronics, 17, 3, (2017), 621-631. DOI: 10.6113/JPE.2019.17.3.621.