Research on the Push-pull Forward Capacitor Clamp Zero-voltage Synchronous Rectifier Converter
In order to improve the efficiency of the push-pull converter, a clamp capacitor is connected in series between the center tap of the high voltage side of the primary side of the traditional push-pull circuit, so that the leakage energy can be absorbed without damage and returned to the input side....
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| Format: | Article |
| Language: | zho |
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Editorial Office of Control and Information Technology
2023-02-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2023.01.009 |
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| _version_ | 1849224994017509376 |
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| author | LIU Guowang ZHANG Yuchi WANG Lin |
| author_facet | LIU Guowang ZHANG Yuchi WANG Lin |
| author_sort | LIU Guowang |
| collection | DOAJ |
| description | In order to improve the efficiency of the push-pull converter, a clamp capacitor is connected in series between the center tap of the high voltage side of the primary side of the traditional push-pull circuit, so that the leakage energy can be absorbed without damage and returned to the input side. The coupling relationship between the two windings of the primary side is established to make the two windings of the primary side transfer energy to the secondary side at the same time, so as to reduce the loss of the absorption circuit of the primary side. At the same time, the synchronous rectifier diode is replaced by the synchronous rectifier tube at the output side by the double guiding pass characteristic of synchronous rectifier MOS tube at the output side, so as to reduce the power loss of the rectifier circuit. A double closed-loop control strategy is proposed for the weak current control part. Finally, a 240 W engineering prototype is built based on modeling analysis and simulation, and the key waveform of the control loop and main power devices are analyzed. The analysis results show that compared with the traditional push-pull converter, the circuit topology can effectively reduce the switching loss of the bridge arm and the power loss of the secondary side rectifier circuit, and the overall efficiency of the converter is improved by about 3%. |
| format | Article |
| id | doaj-art-f16be329e45f435fa9cbfb3d76dfa80f |
| institution | Kabale University |
| issn | 2096-5427 |
| language | zho |
| publishDate | 2023-02-01 |
| publisher | Editorial Office of Control and Information Technology |
| record_format | Article |
| series | Kongzhi Yu Xinxi Jishu |
| spelling | doaj-art-f16be329e45f435fa9cbfb3d76dfa80f2025-08-25T06:49:15ZzhoEditorial Office of Control and Information TechnologyKongzhi Yu Xinxi Jishu2096-54272023-02-01576435498902Research on the Push-pull Forward Capacitor Clamp Zero-voltage Synchronous Rectifier ConverterLIU GuowangZHANG YuchiWANG LinIn order to improve the efficiency of the push-pull converter, a clamp capacitor is connected in series between the center tap of the high voltage side of the primary side of the traditional push-pull circuit, so that the leakage energy can be absorbed without damage and returned to the input side. The coupling relationship between the two windings of the primary side is established to make the two windings of the primary side transfer energy to the secondary side at the same time, so as to reduce the loss of the absorption circuit of the primary side. At the same time, the synchronous rectifier diode is replaced by the synchronous rectifier tube at the output side by the double guiding pass characteristic of synchronous rectifier MOS tube at the output side, so as to reduce the power loss of the rectifier circuit. A double closed-loop control strategy is proposed for the weak current control part. Finally, a 240 W engineering prototype is built based on modeling analysis and simulation, and the key waveform of the control loop and main power devices are analyzed. The analysis results show that compared with the traditional push-pull converter, the circuit topology can effectively reduce the switching loss of the bridge arm and the power loss of the secondary side rectifier circuit, and the overall efficiency of the converter is improved by about 3%.http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2023.01.009push-pull converteractivated converterclamping capacitorsynchronous rectifierleakage-inductor energy absorbing |
| spellingShingle | LIU Guowang ZHANG Yuchi WANG Lin Research on the Push-pull Forward Capacitor Clamp Zero-voltage Synchronous Rectifier Converter Kongzhi Yu Xinxi Jishu push-pull converter activated converter clamping capacitor synchronous rectifier leakage-inductor energy absorbing |
| title | Research on the Push-pull Forward Capacitor Clamp Zero-voltage Synchronous Rectifier Converter |
| title_full | Research on the Push-pull Forward Capacitor Clamp Zero-voltage Synchronous Rectifier Converter |
| title_fullStr | Research on the Push-pull Forward Capacitor Clamp Zero-voltage Synchronous Rectifier Converter |
| title_full_unstemmed | Research on the Push-pull Forward Capacitor Clamp Zero-voltage Synchronous Rectifier Converter |
| title_short | Research on the Push-pull Forward Capacitor Clamp Zero-voltage Synchronous Rectifier Converter |
| title_sort | research on the push pull forward capacitor clamp zero voltage synchronous rectifier converter |
| topic | push-pull converter activated converter clamping capacitor synchronous rectifier leakage-inductor energy absorbing |
| url | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2023.01.009 |
| work_keys_str_mv | AT liuguowang researchonthepushpullforwardcapacitorclampzerovoltagesynchronousrectifierconverter AT zhangyuchi researchonthepushpullforwardcapacitorclampzerovoltagesynchronousrectifierconverter AT wanglin researchonthepushpullforwardcapacitorclampzerovoltagesynchronousrectifierconverter |