基于嵌入式的大功率开关电源

发布时间：2018-12-06 12:20

【摘要】：电源技术如今已经广泛用于人们的生产生活的各个领域,并且对人们的生产生活产生了很大的影响。电源技术起步很早,在其漫长的发展过程中,形成了原理各不相同,特性不一的各种电源技术。如今应用最多的两种电源分别是线性电源和开关电源。随着工业的发展,工业用电源正逐步向大功率化,高效化方向发展,而开关电源因其特有的开关特性而使其能够满足工业用电源的发展需求,在工业中得到了很大的应用。为此,本文对嵌入式技术在开关电源中应用进行研究,设计大功率、高效、数字化的工业开关电源。本文主要做了以下工作： 1.对文献资料进行了深入了解与分析,掌握开关电源数字化的概念、原理、特点及发展方向,为进一步研究开关电源奠定理论基础。 2.对开关电源设计需求进行分析,确定开关电源的功能及指标。针对开关电源各部分的功能,对多种控制方式、开关管选型、逆变器拓扑结构进行分析、比较,最终选择合适的开关电源方案。 3.将开关电源按照功能分为2大部分：主回路、控制回路,分析主回路工作流程,完成每个流程所使用的功率元件的选型,对元器件的性能指标进行分析。根据功能的不同把控制回路分成多个功能模块实现,对各模块的功能进行了论述,相关参数进行了计算,实现具体的硬件电路设计。 4.采用以ARM处理器为核心的嵌入式技术方案,充分利用32位处理器速度快、硬件资源丰富、功耗低、抗干扰性能好等优势,使电源功能得到了充分的发挥,系统扩展性、人机互动性更好,后期更易维护,系统升级更方便。在软件设计上,采用模块化的设计方式,大大简化了软件设计流程。
[Abstract]:Nowadays, power technology has been widely used in various fields of people's production and life, and has had a great impact on people's production and life. Power technology started very early, in its long process of development, the formation of different principles, different characteristics of various power technologies. The two most widely used power sources are linear power supply and switching power supply. With the development of industry, the industrial power supply is gradually developing towards high power and high efficiency. Because of its unique switching characteristics, switching power supply can meet the development needs of industrial power supply and has been widely used in industry. Therefore, this paper studies the application of embedded technology in switching power supply, and designs high power, high efficiency and digital industrial switching power supply. The main work of this paper is as follows: 1. This paper makes a thorough understanding and analysis of the literature, grasps the concept, principle, characteristics and development direction of switching power supply digitization, and lays a theoretical foundation for further research on switching power supply. 2. The design requirements of switching power supply are analyzed, and the function and index of switching power supply are determined. According to the functions of each part of switching power supply, this paper analyzes and compares various control modes, switching tube selection and inverter topology, and finally selects a suitable switching power supply scheme. 3. The switching power supply is divided into two parts according to its function: main circuit, control loop, main circuit work flow, complete the selection of power components used in each flow, and analyze the performance index of components. According to the different functions, the control circuit is divided into several functional modules. The function of each module is discussed, the related parameters are calculated, and the hardware circuit design is realized. 4. Adopting the embedded technology scheme with ARM processor as the core, making full use of the advantages of fast speed of 32-bit processor, abundant hardware resources, low power consumption and good anti-interference performance, the power supply function has been fully developed and the system is extensible. Better man-machine interaction, more easy to maintain later, more convenient to upgrade the system. In software design, the modular design method is adopted, which greatly simplifies the software design process.
【学位授予单位】：广东工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN86

【参考文献】