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直流稳压电源的毕业设计说明

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直流稳压电源的设计摘 要本设计系统采纳PWM 发生器与驱动器为核心,设计附有储存、滤波、分时导通的可调直流稳压电源系统,具有结构简单、成本低、精度高等优点。很大程度上满足了稳压电源的应用需求,稳压电源以体积小、可调控围广、效率高、应用围广的目的而设计的。设计一个双管正激式它激型开关稳压电源电路,使其符合测量要求,主要过程是两个开关管分别轮流导通,传送能量使变压器变压,电流通过二极管和电感L 给电容C 充电同时对负载Rl供电。通过导通周期的互补,电容的充放电发生变化,这样就会使输出电源电压的围发生变化。通过芯片SG3525进行反馈控制电路的占空比,输出采纳滤波电路来实现设计要求。关键词:滤波电路,稳压电源电路,SG3525,双管正激式开关电源。 AbstractThis design system using PWM generator and drive as the core, the design attached storage, filter, time-sharing conduction of adjustable dc regulated power supply system, has the advantages of simple structure, low cost and high accuracy. To a large extent satisfy the application demand of regulated power supply, regulated power supply with small size, wide regulating range, high efficiency, wide application scope and the purpose of design.Design a two pipe is shock type it shock type switch stabilized voltage supply circuit, make it conform to the requirements of the measurement, process are two main switch tube respectively conduction in turn, transmits energy transformer transformer, current through the diode and the inductance L to charging capacitance C to Rl load power supply at the same time. By conducting periodic complementary, charge and discharge capacity changes, this will make the output voltage range change. Through the chip SG3525 feedback control circuit of the duty cycle, output filter circuit is used to achieve the design requirements.key words:filter circuit, voltage stabilizing circuit,SG3525, the two pipe is shock type switching power supply...

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直流稳压电源的毕业设计说明

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