数字化智能充电器的研究

【作者】 韩星；

【导师】 景占荣；

【作者基本信息】 西北工业大学 ， 电工理论与新技术， 2006， 硕士

【摘要】 本文对数字化智能充电器的研究是基于国内外的发展动态,针对军用移动通信电台对电源系统要求进行的。本文首先论述了数字化智能充电器的研究背景和国内外发展动态,对智能电池和智能充电器做了简要介绍。其次,本文紧密结合军方对数字化智能充电器的功能要求和技术指标,对整个系统的硬件方案进行了论证,对各部分电路的拓扑结构和功能进行了说明。为了满足高功率因数的要求和实现先进的充电控制策略,本系统在开关电源前级加入有源功率因数校正电路,并采用高性能的嵌入式控制芯片作为充电控制核心。硬件电路设计部分以电源管理芯片TDA16888为核心,详细介绍了有源功率因数校正电路和双管正激开关电源电路的控制电路设计方法和控制参数的选择过程,并且对主回路关键元器件的参数选择进行了详细说明。硬件设计部分还介绍了充电电路的结构、各功能单元的工作原理以及辅助电源的设计。本文对软件总体设计作了简要介绍,给出了SMBus总线编程和充电控制程序的设计。最后,本文讨论了系统在调试过程中遇到的主要问题和处理方法,给出了系统工作波形。实验结果表明:该系统充电效率高,对电网的污染小,各项指标均满足设计要求。更多还原

【Abstract】 The research of digital smart charger is conducted based on the tendency of development and the request of military mobile communication broadcasting station. Firstly, the background of digital smart charger research and the development of domestic and foreign are elaborated. The principle of smart battery and smart charger is introduced briefly. Secondly, in close integration with the military request to the digital smart charger and the technical specification, the system hardware design is proved, the topology and function of each electric circuit are explicated as well. In order to satisfy the request of high power factor and the advanced charge control strategy, this system joins the active power factor correction circuit and takes the high performance embedded-control chip as the charge control core. The hardware design part is based on the power management chip TDA16888. The design method of control circuit, the choice process of control variable and the specification to essential device of the main route are explicated in detail. The charging circuit structure, the principle of various functions unit as well as the design of assistant power supplier are also introduced. This article makes the brief introduction to the software system design. The SMBus programming and the design of charge control procedure are given. Finally, the questions that meet in the debugging process and the corresponding solutions are introduced. The actual work profile is presented. To conclude, a series of experiments demonstrate that this system enjoys great charging efficiency and slight electric network pollution. Each target of the system satisfies the request.更多还原