Analysis and design of a fully soft-switched buck-boost converter for ultra-capacitor and battery combined interface circuit
A fully soft switched bidirectional converter to interface an ultra capacitor (UC) and a battery is proposed. The proposed converter acts as a Buck ZCT to charge the UC and acts as a Boost ZVT to discharge the UC. The ZVT and ZCT techniques guarantees soft switching condition for all power switches....
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| Main Authors: | , , , , |
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| Format: | Article |
| Published: |
Institution of Engineers Australia
2010
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/22854/ http://search.informit.com.au/documentSummary;dn=095420427427263;res=IELENG |
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| Summary: | A fully soft switched bidirectional converter to interface an ultra capacitor (UC) and a battery is proposed. The proposed converter acts as a Buck ZCT to charge the UC and acts as a Boost ZVT to discharge the UC. The ZVT and ZCT techniques guarantees soft switching condition for all power switches. The proposed converter has high efficiency (above 95%), requires fewer components and has small footprint. The analysis of the switching technique is validated by simulation. In addition, a 100W experimental converter is constructed. The results from simulation and experiment are in good agreement with each other. |
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