正激电路设计报告(共15页).docx
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1、精选优质文档-倾情为你奉上摘 要开关电源是以功率半导体器件作为开关元件,利用现代电力电子技术,控制开关管开通和关断的时间比率,维持稳定输出电压的一种电源。近些年来,开关电源正一步步追求小型化、轻量化、高频化开关电源的体积、重量主要是由储能元件决定的,;在一定范围内,开关频率的提高,不仅能有效地减少电容、电感及变压器的尺寸,而且还能抑制干扰,改善系统的动态性能。因此高频化是开关电源的主要发展方向。它能把电网提供的粗电和强电,变换成各种电气设备和仪器所需要的高稳定度精电和细电(提供不同规格的电压和电流值),它是现代电子设备重要的“心脏供血系统”。本文主要介绍正激电路的运用及它的负载运行情况。介绍在
2、使用matlab仿真下的正激电路运行。 关键词:开关电源;正激电路;matlab仿真AbstractSwitching power supply is a power semiconductor device as a switching element, use of modern power electronic technology, control switch tube opened and shut off time ratio, to maintain stable output voltage of a power supply. In recent years, step b
3、y step, is the pursuit of switch power supply miniaturization, lightweight, high frequency, volume and weight of the switch power supply is mainly determined by the energy storage component,; Within a certain range, the improvement of switching frequency, not only can effectively reduce the size of
4、the capacitor, inductor and transformer, but also can restrain interference, improve the dynamic performance of system. So the high frequency switch power supply is a main developing direction. It can be provided by the grid electricity and high voltage, needs to transform into various electrical eq
5、uipment and instrument of high stability fine electricity and electricity (provide different specifications of the voltage and current value), it is the modern electronic equipment heart blood supply system.This paper mainly introduces is the use of the excitation circuit and its load operation. Int
6、roduced in the use of matlab simulation under the normal shock circuit operation.Keywords: switching power supply; Excitation circuit; The matlab simulation目 录专心-专注-专业第一章 设计任务根据要求本次的设计任务任务为:MOSFET 正激电路设计(纯电阻负载)设计条件:1、输入直流电压:Ud=50V2、输出功率:300W3、开关频率 5KHz4、占空比 10%50%5、输出电压脉率:小于 10%第二章 设计方案2.1 电路原理正激变换器
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