Abstract - An Uninterruptible Power Supply(UPS) is a system designed to deliver energy during accidents
that the AC mains is out of its acceptable limits, without interruption of power flow through the load. Battery
Discharger is the device to supply high quality power to the Inverter, when accidents occur, such as Power
Failure. The Battery Discharger should have a fast response characteristics. The LLC resonant converter for
UPS battery discharger is proposed. The proposed Battery Discharger offers substantial improvements in
efficiency, size and cost. The proposed Battery Discharger of UPS approach is a good solution for high power
applications above KW. To verify the validity of proposed Battery Discharger, simulations and experiments are
carried out.
Paper number: TKPE-2013-18-3-6 ISSN: 1229-2214
✝ Corresponding author: pdpljy@mju.ac.kr,
Dept. of Electrical Engineering, MyongJi University
Tel: +82-31-330-6357 Fax: +82-31-330-6977
1 Dept. of Electrical Engineering, Myongji University
2 Eon Co., Ltd
Manuscript received Oct. 5, 2012; accepted Feb. 20, 2013
─ 본 논문은 2012년 전력전자학술대회 외부장학금 수혜논문임
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