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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.5 No.1
발행연도
2005.1
수록면
67 - 75 (9page)

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A high efficiency ZVS PWM asymmetrical half bridge converter for a plasma display panel (PDP) sustaining power modules is proposed in this paper. To achieve the ZVS of power switches for the wide load range, a small additional inductor L_IKG, which also acts as an output filter inductor, is serially inserted into the transformer's primary side. At that point, to solve the problem of ringing in the secondary rectified caused by L_IKG, the proposed circuit employs a structure without the output filter inductor, which helps the voltages across rectifier diodes to be clamped at the output voltage. Therefore, no dissipative RC (resistor capacitor) snubber for rectifier diodes is needed and a high efficiency as well a low noise output voltage can be realized. In addition, since it has no large output inductor filter. the asymmetrical half bridge converter features a simpler structure, lower cost, less mass, and lighter weight. In addition, since all energy stored in L_IKG is transferred to the output side, the circulating energy problem can be effectively solved. The operational principle, theoretical analysis, and design considerations are presented. To confirm the operation, validity, and features of the proposed circuit, experimental results from a 425W, 385Vdc/170Vdc prototype are presented.

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ABSTRACT

1. Introduction

2. Features of the proposed converter

3. Circuit operation

4. Analysis of the proposed converter

5. Topological extensions of the proposed circuit

6. Simulated and Experimental results

7. Conclusion

References

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