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Open AccessArticle

DC Converter with Wide Soft Switching Operation, Wide Input Voltage and Low Current Ripple

Department of Electrical Engineering, National Yunlin University of Science and Technology, Yunlin 640, Taiwan
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Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(13), 4672; https://doi.org/10.3390/app10134672
Received: 17 June 2020 / Revised: 3 July 2020 / Accepted: 5 July 2020 / Published: 7 July 2020
(This article belongs to the Special Issue Resonant Converter in Power Electronics Technology)
A soft switching current-source resonant converter is presented and implemented for wide voltage applications such as fuel cells and solar power. An LLC (inductor–inductor–capacitor) converter is adopted to accomplish zero voltage (current) operation on active switches (diodes). Thus, the circuit efficiency is increased. The interleaved pulse-width modulation (PWM) converter is employed on the input side to accomplish low input ripple current. A hybrid LLC converter is adopted to achieve wide voltage operation from Vin, min to 4Vin, min and to improve the weakness of a conventional LLC converter. Half-bridge diode rectification is employed on the output side to decrease power loss on the rectifier diode. To confirm the theoretical analysis and feasibility, experimental verifications with a 500-W prototype are demonstrated in this paper. View Full-Text
Keywords: DC converters; ZVS operation; variable frequency control; LLC converter DC converters; ZVS operation; variable frequency control; LLC converter
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MDPI and ACS Style

Lin, B.-R.; Lin, G.-H. DC Converter with Wide Soft Switching Operation, Wide Input Voltage and Low Current Ripple. Appl. Sci. 2020, 10, 4672. https://doi.org/10.3390/app10134672

AMA Style

Lin B-R, Lin G-H. DC Converter with Wide Soft Switching Operation, Wide Input Voltage and Low Current Ripple. Applied Sciences. 2020; 10(13):4672. https://doi.org/10.3390/app10134672

Chicago/Turabian Style

Lin, Bor-Ren; Lin, Guan-Hong. 2020. "DC Converter with Wide Soft Switching Operation, Wide Input Voltage and Low Current Ripple" Appl. Sci. 10, no. 13: 4672. https://doi.org/10.3390/app10134672

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