外文翻译光伏系统中蓄电池的充电保护ic电路设计 毕业设计 .doc

电子与信息工程学院 本科毕业论文(设计) 外 文 文 献 翻 译 译文题目： Design of a Lead-Acid Battery Charging and Protecting IC in Photovoltaic System 学生姓名： 专 业： 电气工程及其自动化 指导教师： 2012年12月 Design of a Lead-Acid Battery Charging and Protecting IC in Photovoltaic System 1.Introduction Solar energy as an inexhaustible, inexhaustible source of energy more and more attention. Solar power has become popular in many countries and regions, solar lighting has also been put into use in many cities in China. As a key part of the solar lighting, battery charging and protection is particularly important. Sealed maintenance-free lead-acid battery has a sealed, leak-free, pollution-free, maintenance-free, low-cost, reliable power supply during the entire life of the battery voltage is stable and no maintenance, the need for uninterrupted for the various types of has wide application in power electronic equipment, and portable instrumentation. Appropriate float voltage, in normal use (to prevent over-discharge, overcharge, over-current), maintenance-free lead-acid battery float life of up to 12 ~ 16 years float voltage deviation of 5% shorten the life of 1/2. Thus, the charge has a major impact on this type of battery life. Photovoltaic, battery does not need regular maintenance, the correct charge and reasonable protection, can effectively extend battery life. Charging and protection IC is the separation of the occupied area and the peripheral circuit complexity. Currently, the market has not yet real, charged with the protection function is integrated on a single chip. For this problem, design a set of battery charging and protection functions in one IC is very necessary. 2.System design and considerations The system mainly includes two parts: the battery charger module and the protection module. Of great significance for the battery as standby power use of the occasion,