高升壓轉換器之研製

Development of High-Voltage Boost Converter

林建勳(Chien-Hsun Lin)

指導教授 ： 胡國英

國立臺北科技大學/電資學院/電機工程系所/碩士(2011年)

摘要

本論文提出一結合電荷幫浦和耦合電感之升壓轉換器，並加入一被動式電壓箝制電路。採用傳統的脈波寬度調變控制觀念，將其應用於5.1V轉60V的直流-直流升壓型轉換器。由於此電路有兩個電荷幫浦，因此在相同的硬體架構下，當採用不同的脈波寬度調變控制策略時，可得到不同的電壓轉換比。於本論文中，首先介紹此轉換器之基本運作原理、相關之數學推導及對應之電壓轉換比，其次，藉由IsSpice模擬軟體來初步驗證所提架構之可行性，最後，採用On-semi公司所生產之TL494xD以做為整個系統的控制核心來實作驗證所提架構之有效性。

關鍵字

電荷幫浦 ； 耦合電感 ； 被動式電壓箝制 ； 高升壓轉換器 ； 脈波寬度調變

並列摘要

In this thesis, a high step-up converter, together with a passive voltage-clamping circuit is presented, which combines two charge pumps and one coupling inductor. Based on the traditional pulse width modulation (PWM) concept, such a converter is applied to a DC-DC converter with the input voltage of 5.1V and the output voltage of 60V. Since there are two charge pumps in this converter, there are two voltage conversion ratios to be obtained without changing any structure, depending on different PWM control strategies. In this thesis, first of all, the basic operating principles, associated mathematical deductions, and corresponding voltage conversion ratios of the proposed converter are described in detail, secondly, some simulation results are given based on simulation software called IsSpice to verify the feasibility of proposed converter, and finally, one PWM control integrated circuit (IC) is used as a control kernel of the overall system, so as to demonstrate the effectiveness of the proposed topology.

並列關鍵字

Charge Pump ； Coupling Inductor ； Passive Voltage Clamping Circuit ； Voltage Boosting ； Pulse Width Modulation

參考文獻

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