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The Design and Research of Current Mode Flyback DC/DC Converter with Constant Frequency

Abstract

随着电子信息产业的飞速发展,传统电源已不能满足今天日益严格的应用要求,开关电源(SwitchModePowerSupply)因其具有体积小、重量轻、效率高、输入输出范围宽、调整精度高等优势,被广泛的应用于电子、通信、航天、医疗等领域。而开关电源的关键就是控制IC部分,并且控制IC重要的参数指标会对于整个开关电源电路产生极大的影响。 在本论文中,首先阐述了开关电源的基本原理和几种主要的拓扑结构,随后介绍了开关电源的几种不同的调制方式,对比了电流控制模式和电压控制模式,并分析了两种控制模式的优缺点。随后根据设计的要求和指标,选择反激式拓扑、PWM(PulseWidthModulation)调制方...Along with the rapid development electronic information industry, traditional power supplies can not meet the needs of today’s strict application requirement. Switching mode power supply, with its compact volume, small weight, high efficiency, wide input/output range and good line regulation, has been widely applied in the fields of electronics, communications, medical, aerospace, etal. The core o...学位:工学硕士院系专业:信息科学与技术学院电子工程系_微电子学与固体电子学学号:2312008115318

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