中文摘要
电源是各种电子装置的中心。最后对该逆变电源进行了计算机仿真和样机实验,它横跨了三个学科:一是微电子精细加工的智能化专用集成电路操控芯片系统;二是正在快速更新的高性能功率半导体MOSFET和IGBT等电力电子器件;三是要合理利用,它有如人体的心脏,各种工业电源,可靠安全等一系列特点,另一片与正弦函数发生芯片做适当的连接来产生SPWM波,医疗和照明电源,创造出十年前意想不到的许多新型稳压电源。20世纪90年代以来,效率高,并推导了重要公式。
本文详细的分析了该逆变电源的工作过程,是所有电类装置的动力。现代高频开关稳压电源技术涉及的内容是极其广泛和复杂的,杨兴洲.开关稳压电源.北京:国防工业出版社,1984
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[8] 李强,周希德.车载单相正弦脉宽调制IGBT逆变器的研制.电力电子技术,1997
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现代开关稳压电源已广泛用于基础直流电源,稳压范围宽,由于它具有功率小,现在正越来越受到青睐和推崇。操控电路采用了2片集成脉宽调制电路芯片,计算机电源,绕制各种电感器件和变压器所用的磁性材质等几大类。其主电路构成采用的是Boost电路和全桥电路的组合。本文设计的单相脉宽调制逆变电源属于交流电源(AC-DC-AC逆变),雷达高压电源,集成芯片比分立元器件操控电路具有更简单,随着电力电子技术飞速地发展,陈大钦.电子技术基础(模拟部分),第四版.高等教育出版社,1998
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关键词：逆变器;正弦脉宽调制;场效应管
Abstract
Power supply is core and drive of electric equipments. With the flying development of power electronics technology, It has come forth continually that is IC of high intelligence, new type electronic device and topology since 1990's. As aresult, A lot of new type steady-voltage power supply has been created that is indescribable ten years ago. High-frequency switching power supply is a branch of power supply. It possesses many advantages such as low-power, high-frequency, small- volume, light-weight, wide-range of steady voltage, credibility and security. It has been received and upheld by the people. It involves a great deal content that is extensive and intricate. It bestrides subject of three aspects. The first is IC control chip system of micro-electronics; The second is electronic devices of high-performance power semiconductor such as MOSFET and IGBT. The third is various devices of inductance and magnetic materials of transformer how to be utilized and rolled rationally.
Steady voltage power supply of modern switching has been applied in the following aspects widely. They are DC power supply, AC power supply, industry power supply, computer power supply, UPS power supply, power supply of medical treatment and lighting, high voltage power supply of radar, power supply of sound and video frequency and so on. Single-phase Sinusoidal Pulse Width Modulation Inverter Power Supply in this paper belongs to AC power supply (AC-DC-AC convert). Control mode adopts feedback of voltage control. The methods of intermitting power flux and changing duty-cycle can change pulse width of drive voltage that adjust and rectify output voltage ultimately. The main circuit is made up of compounding of Boost and the full-bridge circuit. The control circuit adopts two chips of integrated pulse width modulation. One produces PWM waveform. The other connects chip of producing sinusoidal signal properly, which brings SPWM waveform. Integrated chip is more simple, reliable and laboratorial than discrete component.
The operation of inverter power supply is thoroughly analyzed and some important formulas are deduced. Finally, the principle of operation are illustrated and verified on emulation and experimental results.
Key words: inverter; Sinusoidal Pulse Width Modulation,MOSFET
目录
第1章 概述 1
1.1现代电源发展概况 1
1.1.1 交流稳压电源 1
1.1.2 UPS及交流净化电源 2
1.1.3 工业电源的发展 2
1.1.4 直流开关电源 2
1.1.5 软开关——PWM功率变换器 3
1.1.6 分布电源技术的发展 4
1.1.7 功率因数校正技术 4
第2章 PWM的工作原理 5
2.1 PWM的基本原理 5
2.2 PWM型逆变电路的操控方法 8
2.2.1 异步调制 8
2.2.2 同步调制 9
2.3 SPWM波形的生成方法 9
第3章 逆变电源组成及主电路的设计 10
3.1 系统组成 10
3.2 主电路组成及工作原理 11
3.3 主电路设计 11
3.3.1 共模抑制环节 11
3.3.2 工频变压器设计 13
3.3.3 限流电路设计 14
3.3.4 Boost变换器设计 15
3.3.5 桥式逆变器基本原理 20
3.4 主电路图 21
第4章 逆变电路的操控电路设计 22
4.1 辅助电源设计 22
4.2 操控电路框图 23
4.3 SG3524和ICL8038芯片介绍 24
4.3.1 SG3524芯片 24
4.3.2 ICL8038芯片 25
4.4 操控电路设计 27
4.4.1 利用SG3524生成SPWM波形 27
4.4.2 驱动电路设计 28
4.4.2.1 驱动电路工作原理 28
4.4.2.2 驱动电路参数原理图 29
4.4.3 过流保护电路 30
4.4.4 反馈调压电路 30
4.4.4.1 反馈调压电路工作原理 30
4.4.4.2 反馈调压电路主电路图 31
4.5 操控电路图 32
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第5章 结论与展望…………………………………………………………………………..33
致谢……………………………………………………………………………………………….34
参考文献………………………………………………………………………………………. 36
参考文献
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