以 MOSFET 電路架構設計來提升電源轉換器 效率並與過去同步降壓轉換器做分析比較

本研究為發展電源同步降壓轉換器技術，開關轉換器技術大概分為六類.分別為電路拓樸與控制、功率半導體與 IC 器件、電感變壓器與電容等。儲能元件，而這次研究的內容比較於偏向非隔離式直流轉換器，包括六個基本轉換器 (Buck, Boost, Buck-Boost, Cuk, Sepic, Zeta)。而本篇技術報告主要是由功率半導體以及 IC 設計的角度出發，電源開關轉換器的原理就是靠著半導體開關元件的導通與關斷，達到將輸入端直流電壓脈衝形式，作為後續能量轉換與處理的基礎，不同的元件就有不同的特性(包括直流穩態，交流動態，溫度特性等。) 另外以往的電源轉換器其實採用較舊式製程及電路設計,在效率上以及溫度的表現上總是有它的極限值,本篇論文是以 MOSFET 電路架構的設計以及製程改善方式降低 MOSFET 的 RDSON,來降低熱的損耗,增加其效率,並且與過去就為傳統之方式的電源轉換器作為比較,並在實驗上將周遭相同條件包括(電感跟電容以及其他相關被動元件)感值跟電容值奈電流大小及周遭線路都相同,只針對電源轉換器 IC 做替換,最後跟過去的同步降壓轉換器做分析以及比較。

關鍵字

場效電晶體；電源轉換器；降壓轉換器；電壓穩定器

並列摘要

This research is to develop the power supply synchronous buck converter technology, switching converter technology is roughly divided into six categories. They are circuit topology and control, power semiconductors and IC devices, inductors, transformers, and capacitors. Energy storage components and this study compare favorably to non isolated DC converters, including six basic converters (Buck, Boost, Buck-Boost, Cuk, Sepic, Zeta). This technical report is mainly from the perspective of power semiconductors and IC design. The principle of the power switching converter is to rely on the turn-on and turn-off of semiconductor switching elements to achieve the DC voltage pulse form at the input end as a follow-up energy conversion and processing. The basis is that different components have different characteristics (including dc steady state, ac dynamics, temperature characteristics, etc. In addition, the previous power converters actually used older processes and circuit designs, and they always have their limits in terms of efficiency and temperature performance. This paper uses MOSFET circuit architecture design and process improvement methods to reduce the RDS_ON of MOSFETs. To reduce the heat loss and increase its efficiency, and compared with the traditional power converter in the past, and experimentally the same conditions surrounding (inductance and capacitance and other related passive components) inductance and capacitance value. The current size and the surrounding circuit are the same, only for the replacement of the power converter IC, and finally analyzed and compared with the past synchronous buck converter

並列關鍵字

MOSFET ； power converter ； buck converter ； voltage stabilizer

參考文獻

Google Scholar

〔1〕 Raymond Ridley， "A New Small-Signal Model for Current-Mode Control ”， Ph.D. Dissertation， Electrical Engineering Department， Virginia Polytechnic Institute and State University， 1991.

Google Scholar

〔2〕 Jian Li， "Current-Mode Control: Modeling and its Digital Application ”， Ph.D. Dissertation， Electrical Engineering Department， Virginia Polytechnic Institute and State University， 2009.