随着信息时代的来临，电源管理技术在21世纪中的地位越来越重要。不论是最先进的个人电脑、便携式无线通讯设备，还是汽车电子产品，能否实现高效、智能的电源管理，将对整个系统的性能产生巨大的影响。新技术、新功能能否成为现实，也取决于是否能够实现高效、智能的电源管理。
本课题针对单片机系统常用电源±5V、+9V、+12V、可调的LCD偏置电源(-10V~ -24V)，基于专用电源芯片MAX715，进行了外围电路设计，通过AT98C51和键盘输入控制，实现了单片机用电源管理系统的功能。
本课题硬件设计用Protel99 SE工具，软件仿真用Keil c V3.60语言编程。系统经调试，功能稳定，均实现各项任务指标。
关键词：电源管理；可调电压；MAX715；报警
ABSTRACT
As the technology and information developing fast, the power source management technology is more and more important in the 21st century statuses. Whether it is in the most advanced personal computer, portable wireless communications equipment, or automotive electronic products, can achieve high efficiency, Intelligent power management, its performance throughout the system have a tremendous impact. New technologies and new functions can become a reality, but also on whether it is possible to achieve highly efficient and intelligent power management.
This topic was based on the most popular power source of monolithic processor systems which was ±5V、9V、12V. and tunable LCD bias power source (- 10V - 24V). Its periphery electric circuit was designed by the power chip MAX715, and with the AT89C51 and pressed key to carry out purpose of power source management system.
The hardware of this topic was designed by Protel99 SE ,and the hardware emulator was designed by base Keil c V3.60.When the system was debugged, it carried out all required precision.
Keywords: Power Source Management；Voltage Regulation；MAX715；Alarm
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