双端控制开关电源方案设计书.docVIP

洛 阳 理 工 学 院 毕 业 设 计（论 文） 题目＿＿双端控制开关电源设计＿ 2013年4 月 22 日双端控制开关电源设计 摘 要 随着科学技术的飞速发展，开关电源技术得到了广泛的应用，传统的开关电源已不能满足现代工业的发展需要，因此对开关电源的性能也提出了更高的要求。全桥变换器容易到达较高的输出功率，易实现软开关、且效率高、功率管承受的电压低等优点，适用于大功率工业用电源，如焊接电源、电解电源等。本文介绍了由UC3524组成的它激式全桥移相零电压（ZVS）开关电源， ZVS技术能使电路在高频的情况下能很大程度上减小开关损耗，提高电路工作效率，另外，我在UC3524的11脚和14脚的输出端分别加入推挽驱动放大器，能够大大增加输出功率。另外，本文详细阐述了整流电路、逆变电路、的工作原理和具体的工作状态，零电压开关技术（ZVS）在移相全桥变换电路中的应用，分析了电路原理、工作模态、开通及关断的过程和实现条件，最后对整个设计做了总体的分析。 关键词：全桥移相控制、零电压开关技术、推挽驱动放大器 英文题目 ABSTRACT With the rapid development of science and technology, switching power supply has been widely used, the traditional switching power supply cant meet the development needs of modern industry, therefore the performance of the switch power supply is also put forward higher request. Full bridge converter is easy to reach high output power, and high efficiency, easy to achieve soft switch, the power tube under low voltage, suitable for high power industrial power supply, such as the welding power supply, electrolytic power supply and so on. Composed of UC3524 it were introduced in this paper excitation type full bridge phase shifting zero voltage (ZVS) switching power supply, the ZVS technology, make the circuit in the case of high frequency can largely reduce the switch loss, improve the work efficiency of the circuit, the other 11 feet and 14 feet in UC3524 output join push-pull driving amplifier, respectively, to achieve the purpose of increasing power output. In addition, this paper expounds on the rectifier circuit, inverter circuit, working principle and concrete working condition, zero voltage switching (ZVS) technology in the application of phase-shift full bridge commutation circuit, analyzes the circuit principle, working mode, opened and shut off process and the implementation condition, and finally to the whole design has made the overall analysis. KEY WORDS: full bridge phase shifting control, zero voltage switching technology, push-pull amplifier drivers. 目　录 前　言 1 第1章 绪论 2 1.1开关闭电源简介 2