本文選題：LLC諧振變換器 + SABER仿真��； 參考：《華南理工大學》2014年碩士論文

【摘要】：上世紀70年代，美國學者提出了諧振變換器的概念，受當時電力電子技術發(fā)展水平的制約，諧振變換器在較長時間里都沒有應用到實際產品中。直到本世紀初，隨著電力電子技術的快速發(fā)展及超大規(guī)模集成電路的涌現(xiàn)，諧振變換器開始被人們所關注。由于電源在功率密度、體積、效率及電磁干擾（EMI）等方面的要求不斷提高，諧振電源的優(yōu)勢不斷凸顯，這促進了諧振電源的快速發(fā)展。 本文采用ADI公司的電源控制芯片ADP1046A設計了一款LLC諧振數(shù)字電源，該電源具有效率高、動態(tài)性能好等特點。LLC諧振電源按其結構可分為主電路和控制電路兩部分，本文從這兩部分來設計高效LLC諧振數(shù)字電源。 在主電路設計方面，本文首先基于LLC諧振變換器的穩(wěn)態(tài)電路模型，提出了一種計算諧振器件參數(shù)的方法；然后對主電路的功率器及主變壓器進行選型及設計，原邊開關管型號為IPA65R190CFD，整流管型號為BSC016N04LSG；最后采用SABER軟件構建了LLC諧振電源的仿真模型，通過該仿真模型來驗證主電路參數(shù)能否使?jié)M足原邊開關管ZVS和副邊整流管ZCS的要求，同時通過仿真結果分析所選器件是否滿足應力要求及為控制電路設計提供參考。 在控制電路設計方面，首先采用ADP1046A作為諧振電源的主控芯片，以此作為整個控制系統(tǒng)的核心，，設計出該芯片的外圍電路及原副邊電壓電流檢測電路；然后再進行驅動電路及輔助源電路設計，原邊驅動器采用高壓隔離驅動器ADuM4223，副邊驅動器采用大電流、高速ADP3654，輔助源電路采用簡單可靠的反激拓撲結構，輔助源電路控制芯片選擇具有功率折返特性的NCP1234；最后通過ADP1046A的軟件GUI來設置電源工作頻率、死區(qū)時間、過壓過流門限、濾波環(huán)路等控制參數(shù)。 最后對電源的各項指標進行測試，通過對比分析測試結果可知，本文設計的LLC諧振電源在效率、動態(tài)響應等方面具有較強的優(yōu)勢，具有較好的實際應用價值。
[Abstract]:In the 1970s, American scholars put forward the concept of resonant converter. Limited by the development level of power electronics technology at that time, resonant converter has not been applied to practical products for a long time. Until the beginning of this century, with the rapid development of power electronics technology and the emergence of VLSI, resonant converters began to be concerned. Due to the increasing power density, volume, efficiency and electromagnetic interference (EMI) requirements, the advantages of the resonant power supply are constantly highlighted, which promotes the rapid development of the resonant power supply. In this paper, a LLC resonant digital power supply is designed with the power supply control chip ADP1046A of ADI Company. The power supply has the characteristics of high efficiency and good dynamic performance. According to its structure, the resonant power supply can be divided into two parts: the main circuit and the control circuit. This paper designs an efficient LLC resonant digital power supply from these two parts. In the design of main circuit, based on the steady-state circuit model of LLC resonant converter, a method to calculate the parameters of resonator is proposed, and then the power device and transformer of the main circuit are selected and designed. The primary switch tube is IPA65R190CFDD and the rectifier is BSC016N04LSG.The simulation model of LLC resonant power supply is constructed by using SABER software, and the main circuit parameters can satisfy the requirements of ZVS and ZCS. At the same time, the simulation results are used to analyze whether the selected device meets the stress requirement and provide reference for the design of control circuit. In the aspect of control circuit design, ADP1046A is first used as the main control chip of resonant power supply, which is the core of the whole control system. The peripheral circuit of the chip and the detecting circuit of primary and secondary side voltage and current are designed. Then the drive circuit and auxiliary source circuit are designed. The primary side driver uses high voltage isolation driver ADuM4223, the secondary side driver adopts high current and high speed ADP3654, and the auxiliary source circuit adopts a simple and reliable flyback topology. The auxiliary source circuit control chip selects NCP1234 with power reentrant characteristics. Finally, the control parameters such as power supply frequency, dead-time, overvoltage overcurrent threshold, filter loop and so on are set by ADP1046A software GUI. Finally, through the comparison and analysis of the test results, the LLC resonant power supply designed in this paper has strong advantages in efficiency, dynamic response and so on, and has good practical application value.
【學位授予單位】：華南理工大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM46

【參考文獻】

相關期刊論文 前10條

1 趙敏杰;戴瑤;張懷武;;LLC諧振變換器的參數(shù)設計[J];磁性材料及器件;2011年02期

2 歐陽茜;吳國良;錢照明;;LLC諧振全橋DC/DC變流器的優(yōu)化設計[J];電力電子技術;2007年01期

3 江雪;龔春英;;LLC半橋諧振變換器參數(shù)設計法的比較與優(yōu)化[J];電力電子技術;2009年11期

4 紀峰;王忠東;徐晴;;一種LCC諧振變換器參數(shù)的設計和分析[J];電力電子技術;2011年05期

5 楊鳳彪;楊怡君;閆英敏;趙霞;;RC緩沖電路的優(yōu)化設計[J];電氣開關;2008年05期

6 王冰;張潤和;韓錚;劉曉宇;;開關電源系統(tǒng)仿真研究[J];電網技術;2008年S2期

7 陸治國;余昌斌;;基于FHA的LLC變換器穩(wěn)態(tài)分析[J];低壓電器;2007年17期

8 張志成;尹斌;郭首金;;基于UC3863控制的LLC諧振變換器的設計及仿真[J];電子設計工程;2012年06期

9 陳申;呂征宇;姚瑋;;LLC諧振型軟開關直流變壓器的研究與實現(xiàn)[J];電工技術學報;2012年10期

10 趙慧超;張青利;劉洪昌;顏湘武;;半橋LLC型諧振變換器的高頻變壓器設計[J];廣東電力;2012年11期

本文編號：1988973