Design and Implementation of a Dual-Switch Flyback Converter with High Voltage and Wide Range Input
碩士 === 國立臺北科技大學 === 電機工程系 === 106 === The purpose of this thesis is to design and implement a dual-switch flyback converter with high voltage and wide range input. Compared to the traditional flyback structure, the dual-switch flyback converter has two MOSFETs and two associated freewheeling diodes....
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| Format: | Others |
| Language: | zh-TW |
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2018
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| Online Access: | http://ndltd.ncl.edu.tw/handle/p3u8bw |
| Summary: | 碩士 === 國立臺北科技大學 === 電機工程系 === 106 === The purpose of this thesis is to design and implement a dual-switch flyback converter with high voltage and wide range input. Compared to the traditional flyback structure, the dual-switch flyback converter has two MOSFETs and two associated freewheeling diodes. When one of the MOSFETs is turned-off, the energy saved on leakage inductance can keep flowing and goes through the freewheeling diode into input side to suppress the voltage spikes and reduce the voltage stresses very well without adding a snubber circuit.
In this thesis, analysis and design on the operation of the dual-switch flyback converter are performed. The dual-switch flyback converter is designed and implemented with input voltage varied from dc 400V to 800V for three-output total power 35 W at full load condition. As a result, the experiments conducts theory and analysis to show the implemented dual-switch flyback converter can operate on a wide voltage range and work well as expectation.
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