Suppression of the Diode Voltage Spikes in DC/DC Converter with Saturated Reactor
In high power separated DC/DC converter, the reverse recovery of rectifier diode produces parasitic oscillation and causes higher voltage stress and extra electromagnetic interference. According to the reverse recovery characteristics of power diode, an equivalent model of rectifying circuit was bui...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2018-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2018.05.007 |
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| Summary: | In high power separated DC/DC converter, the reverse recovery of rectifier diode produces parasitic oscillation and causes higher voltage stress and extra electromagnetic interference. According to the reverse recovery characteristics of power diode, an equivalent model of rectifying circuit was built and the expression of diode-voltage spike was deduced. To suppress the reverse recovery current and magnify the damp ratio, the operational principles of series saturated reactor were expounded and the design method was discussed. Further, the influence of saturated reactor parameter was studied through simulation. Finally, the experiment results are in accordance with the simulation ones, which proves that the analyzing and designing methods are effective. |
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| ISSN: | 2096-5427 |