高頻變壓器之鐵芯特性探討

The Discussion of Characteristic of Ferrite Core for High Frequency Transfomers

張耀仁(Yao-Jen Chang)

指導教授 ： 何金滿

中原大學/工學院/電機工程研究所/碩士(2003年)

https://doi.org/10.6840/cycu200300358

摘要

由於高頻切換技術的發展成熟、應用場合多，已成為電力電子範疇內的主流趨勢，而使開關元件的切換方式及高頻變壓器的設計，成為目前較受到重視的研究項目。
本論文主要目的為探討高頻變壓器之鐵芯特性，採用積分器獲得磁通波形，並配合激磁電流波形繪出磁滯曲線，可由此分析鐵芯特性並與理論相比較。再藉由改變氣隙長度，觀察其磁滯曲線的變化以了解氣隙大小對鐵芯特性之影響。

關鍵字

磁滯曲線 ； 高頻變壓器

並列摘要

For the time being, high-freqency switching technique is widely used in various applications. Therefore, the techniques of switching method of devices and designing of high-frequency transformers have become one of the main research subjects in power eletronic area.
The main objective of this thesis is discussing the characteristics of core materials which are used for high-frequency transformers. In experimental, an integrator has been used to obtain the waveforms of magnetic flux. In cooperating with excitating current, these waveforms are transformed into hysteresis curves. The relationships between length of airgap and performance of transformer are also investigated.

並列關鍵字

hysteresis curves ； high-frequency transformers

參考文獻

[19] 周錦明，“非晶質鐵心變壓器磁滯迴線的求取分析與測試”，私立中原大學電機工程學系研究所碩士論文，民國九十一年。

[6] B. D. Cullity,“Introduction to Magnetic Materials”, Chap. 1, Addison-Wesley, 1972.

[7] B. D. Cullity,“Introduction to Magnetic Materials”, Chap. 14, Addison-Wesley, 1972.

[8] B. D. Cullity,“Introduction to Magnetic Materials”, Chap. 13, Addison-Wesley, 1972.

[11] B. D. Cullity,“Introduction to Magnetic Materials”, Chap. 6, Addison-Wesley, 1972.