便携式软件无线电平台电源管理技术研究与实现

发布时间：2018-01-15 01:02

本文关键词：便携式软件无线电平台电源管理技术研究与实现　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着便携式软件无线电平台功能不断地丰富和性能指标不断地提高,小体积、高密度、高效电源管理方案成为平台电源系统的研究重点。目前,高速发展的半导体技术以及便携式软件无线电平台的高度集成设计现状,为电源管理子系统提出了新的要求:(1)大规模微处理器需要低电压、大电流、良好的瞬态响应性能的电源供电;(2)宽频带、高速率、远距离的无线通信系统的收发端的功耗越来越大;(3)高可靠性、高模块密度需求成为小体积平台高效电源管理设计的难点。为此,论文针对便携式软件无线电平台电源管理技术进行了研究,主要包括:第一,针对便携式软件无线电平台构成,设计了IBA平台电源架构;立足于高性能微处理器的供电需求,重点分析了负载点电源(POL)主电路、POL瞬态响应的主要相关因素以及AVP抗瞬态控制环路,并利用MATLAB对影响电路瞬态响应的主要参数进行了估算。第二,结合平台的应用场景以及各板卡的电源需求,设计了平台电源软硬件管理策略,确定了平台电源管理电路关键芯片的型号;量化了平台电源瞬态响应指标需求,设计并完成了AVP抗瞬态控制POL电源的Pspice电路仿真。结果表明该电路的瞬态响应电压变化范围在2%以内。第三,实现了平台电源管理硬件电路及低功耗电源管理方案;对POL电源的功能指标、性能指标、平台模式功耗进行了测试与分析。测试结果表明POL电源状态、信号时序、纹波、瞬态响应均满足需求;在8.4V/5000mA的电池容量下,内嵌电源管理策略的平台,较无管理策略的平台:平均效率提升比可达41.38%,工作时间最少可延长1.12小时。论文为便携式平台的电源管理方案提供了解决思路和实际验证,具有一定程度的通用性和实用性,可应用于部分便携式平台或手持式终端。
[Abstract]:With the continuous enrichment of the portable software radio platform and the continuous improvement of performance indicators, small volume, high density, high efficiency power management has become the focus of the platform power system research. With the rapid development of semiconductor technology and the highly integrated design of portable software radio platform, a new requirement for power management subsystem is put forward: (1) Large-scale microprocessors require low voltage and high current. Good transient response performance of power supply; (2) the power consumption of wireless communication system with wide band, high speed and long distance is more and more high. The requirement of high reliability and high module density has become a difficult point in the design of high efficiency power supply management for small scale platform. Therefore, the power management technology of portable software radio platform is studied in this paper. The main contents are as follows: first, the IBA platform power supply architecture is designed for the portable software radio platform. Based on the power supply requirement of high performance microprocessor, the main factors related to the transient response of the main circuit of the load point power supply (Pol) and the anti-transient control loop of AVP are analyzed. The main parameters that affect the transient response of the circuit are estimated by using MATLAB. Secondly, combining the application scenario of the platform and the power demand of each board card, the software and hardware management strategy of the platform power supply is designed. The model of the key chip of the platform power management circuit is determined. The requirement of transient response index of platform power supply is quantified. Design and complete the Pspice circuit simulation of AVP anti-transient control POL power supply. The results show that the transient response voltage range of the circuit is less than 2%. Third. The hardware circuit of platform power management and the scheme of low power consumption power management are realized. The function index, performance index and platform mode power consumption of POL power supply are tested and analyzed. The test results show that the state of POL power supply, signal timing, ripple and transient response all meet the demand. Under the battery capacity of 8.4 V / 5 000mA, the platform with embedded power management strategy is more efficient than the platform without management strategy: the average efficiency improvement ratio can reach 41.38%. The working time can be extended at least 1.12 hours. The paper provides a solution and practical verification for the power management scheme of portable platform, which has a certain degree of versatility and practicability. Can be used in some portable platforms or handheld terminals.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN014;TN86

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