相移式零電壓切換感應充電器耦合電路設計與研製

Design and Implementation of Phase-Shifted Zero Voltage Switching Coupling Circuit for Inductive Charger

葉作勉(Zuo-Mian Yeh)

指導教授 ： 何金滿

中原大學/工學院/電機工程研究所/碩士(2004年)

https://doi.org/10.6840/cycu200400176

摘要

本篇論文主要針對傳導式充電器作改善，採用感應式充電取代傳統的金屬接觸式充電。感應式充電的原理是先將電力轉換為磁場，再將磁場轉為電供給負載，利用變壓器線圈感應耦合的方式，傳遞能量；而不是金屬對金屬的接觸傳遞。變壓器一次側繞組是在電源端，而變壓器的二次側繞組則是在負載端，亦即由兩個可分離之鐵心組成的變壓器。

感應充電器功率傳輸的部份，本研究採用相移式全橋零電壓切換轉換器來提高轉換的效率，並藉由UC3875 PWM 控制IC使轉換器達到柔性切換，降低切換損失。接著探討耦合變壓器鐵心偏移量，對感應充電器效率的影響。

關鍵字

感應充電器 ； 零電壓切換 ； 全橋轉換器

並列摘要

The object of this thesis is to study a wireless transmission power of inductive charger utilizing inductive coupling theorem of transformer coils. Inductive charging systems transfer AC power by magnetically coupling a primary winding on the supply side to a secondary winding on the load side. Advantages of inductive charging include that the paddle is very easy for the consumer to use; an off-board charger reduces vehicle weight, which can contribute to extended vehicle range, and there are no exposed metal parts to corrode or degrade over time.

The first purpose of this thesis is to improve the converter efficiency and soft switching for the main devices. By using the phase-shifted full-bridge zero-voltage-switched PWM technique, this charger can reduce switching loss, component stress, and electromagnetic interferences of power semiconductor devices. The second purpose is to discuss the effects of air-gap between primary core and secondary core.

並列關鍵字

Zero-Voltage-Switching ； Inductive Charger ； Full-Bridge Converter

參考文獻

[43] 鄭一鋒， “相移式零電壓切換高頻感應加熱器之設計與研製”，

[49] 曾裕傑， “鉛蓄電池充電特性與檢測之研究” ， 中原大學電機

Converters Supplying the SAE J-1773 Electric Vehicle Inductive

Coupler,” IEEE APEC Conf. Proc., vol. 2, 1997

Air-Gap Coupler for Inductive Charger,” IEEE Trans. on Magnetics,