LLC resonant converter with wide output voltage control characteristics according to operating mode transition
| Autor: | Jicheol Lee, Yechang Heo, Eun-Soo Kim, Yoonsang Kook, Jong-Seong Ju, Takongmo Marius |
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| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Materials science Hysteresis control business.industry Voltage control 020208 electrical & electronic engineering Electrical engineering 02 engineering and technology law.invention 020901 industrial engineering & automation law 0202 electrical engineering electronic engineering information engineering Resonant converter business Transformer Voltage |
| Zdroj: | 2018 IEEE Applied Power Electronics Conference and Exposition (APEC). |
| DOI: | 10.1109/apec.2018.8341309 |
| Popis: | This paper presents an LLC resonant converter which operates over a wide output voltage control characteristics by changing the operating modes of the switching devices. As the converter transits from one operating mode to the other, the primary and secondary terminals of the two transformers are either connected in parallel or the series and makes it possible to achieve a wide controllable output voltage (50Vdc–800Vdc). Each mode is operated with a varying frequency (FM) and voltage/current over-shoots or under-shoots are minimized as the converter transits from one operating mode to the other. Moreover, a hysteresis control band is introduced between the operating modes to ensure stable mode transition. The feasibility of the proposed converter is verified with experimental results of a 2kW prototype. |
| Databáze: | OpenAIRE |
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