嵌入式系统中电源管理电路的设计与实现

针对大部分嵌入式系统的电池电源管理问题,设计了一种为嵌入式系统——尤其是应用在手持式和便携式设备的嵌入式系统进行电源管理的单元电路模块。该电源管理电路以MAX8903为核心,具有输入范围宽、体积紧凑、外围电路简单、工作效率较高等优点,可以在嵌入式系统中用来管理电池充电、电源选择、电源检测等,很好地满足了电源管理单元的功能需求。

Design and Implementation of Power Management Circuit in the Embedded System

For most power management problem of battery in the embedded systems,a kind of embedded systems,especially for application in the unit circuit modules for power management in the handheld and portable devices,was designed in this paper. In this system,using the MAX8903 power management circuit as the core,with wide input range,compact size,simple external circuit,high efficiency and other advantages,the power management circuits can be used to manage battery charging,power selection,power testing,etc.in embedded systems,well meet the function requirements for power management unit.