Design considerations of asymmetric step-up/down dual-resonator charger for lithium-ion battery applications
In Lithium-ion battery charging applications, wide step-up/down voltage gain range converters are commonly used. The resonant frequency ratio and quality factor can seriously affect the switching frequency range and voltage gain characteristics of the step-up/down dual-resonator converter. Therefore...
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Published in | Energy reports Vol. 8; pp. 696 - 704 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.08.2022
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | In Lithium-ion battery charging applications, wide step-up/down voltage gain range converters are commonly used. The resonant frequency ratio and quality factor can seriously affect the switching frequency range and voltage gain characteristics of the step-up/down dual-resonator converter. Therefore, combined with two asymmetric voltage gain cases, by matching the appropriate resonant frequency ratio and minimum quality factor, the required step-up and step-down voltage gain range can be achieved in a specific frequency range above the critical resonance point. On the basis of the impacts and issues, a comprehensive design method is proposed in this paper for improving the voltage gain characteristics and switching frequency range utilization in asymmetric wide conversion range lithium-ion battery charging applications. Moreover, a prototype with 20 V input to 10–60 V output is built and tested to verify the proposed design method. |
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ISSN: | 2352-4847 2352-4847 |
DOI: | 10.1016/j.egyr.2022.02.189 |