새로운 영전압 스위칭 이단방식의 고역률 컨버터Novel Two Stage AC to DC Converter with Single Switched Zero Voltage Transition Boost Pre Regulator using DC Link Energy Feedback

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A novel two stage soft-switching ac-to-dc convener with power factor correction is proposed. The proposed convener provides zero-voltage-switching (ZVS) condition to main switch of boost pre-regulator without auxiliary switch. Comparing to the conventional two stage approach(ZVS-PWM boost rectifier followed by off-line ZVS dc-dc step down converter), the proposed approach is simple and reducing EMI noise problem. A new simple DC-linked energy feedback circuit provides zero-voltage-switching condition to boost pre-regulator without imposing additional voltage and current stresses and loss of PWM capability. Operational principle, analysis, control of the proposed converter together with the simulation results of 1KW prototype are presented.
Publisher
대한전기학회
Issue Date
1996-07
Language
KOR
Citation

대한전기학회 하계 학술회의, pp.385 - 387

URI
http://hdl.handle.net/10203/125050
Appears in Collection
EE-Conference Papers(학술회의논문)
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