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논문 기본 정보

자료유형
학술대회자료
저자정보
Yang Chen (Xi’an Jiaotong University) Yaqi Sun (Xi’an Jiaotong University) Mofan Tian (Xi’an Jiaotong University) Laili Wang (Xi’an Jiaotong University) Haoyuan Jin (Xi’an Jiaotong University)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2019-ECCE Asia
발행연도
2019.5
수록면
1,729 - 1,735 (7page)

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Dielectric elastomer (DE) is a kind of capacitive material that widely used in soft robots’ applications as actuators. To obtain notable deformation, the drive voltage is typically up to several thousand volts and the charging charges must be removed to make it recover. In this paper, a high step-up capacitive load bi-directional flyback converter with active clamp technique is proposed. For the charging process, the effects of increasing high output voltage and parasitic elements in the circuit on the operation of the active clamp circuit are discussed in detail. Wide bandgap devices are used at the secondary side to reduce the parasitic capacitance. The proposed lossless active clamp circuit can absorb the energy in leakage inductance of transformer and achieve zero-voltage-switching (ZVS) over most of the charging process. Besides, the EMI problem caused by leakage inductance of conventional flyback converter is also solved. A prototype with 12V input and 1000V output has been fabricated and compared with a quasi-resonance flyback (QR flyback) at the same working condition. The tested results verify the good performance of the proposed ACF converter.

목차

Abstract
I. INTRODUCTION
II. CONVERTER CONFIGURATION
III. CONVERTER OPERATION
IV. CONTROL STRATEGY AND CIRCUIT DESIGN
V. EXPERIMENTAL RESULTS AND ANALYSIS
VI. CONCLUSIONS
REFERENCES

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