基于FPGA的虚拟电源的研究与实现  

Research and Implementation of FPGA-Based Virtual Power Supply

作　　者：曹凯程 杨闯[1] 杜玉远[1] 王骄[1] 

机构地区：[1]东北大学信息科学与工程学院,沈阳110819

出　　处：《电子器件》2015年第2期306-311,共6页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61370153)

摘　　要：设计了以FPGA为核心控制芯片的虚拟电源系统。实现了虚拟电源的硬件平台和软件系统,包括控制开关模块、电压采集模块、电压输出模块、电压自调整模块、UART模块、数值转换模块等。系统利用UART与上位机实现通信,通过控制AD5662和TPS5450芯片输出设定电压,并实时地从AD7699芯片处获得实际输出电压值,通过自调整模块使电压稳定在设定值的附近。电压测试范围从2.6V到4.2V,当系统不带负载时,输出电压的纹波小于10mV,当输出电流为1A时,输出电压纹波小于20mV。In order to design a virtual power supply system using FPGA as the central control chip, and implemented the hardware platforms and software systems. The whole system includes the switch control module, the voltage ac- quisition module, the voltage output module, the voltage self-regulator module, the UART module and the numeric conversion module. The system communicates with the host computer via UART, outputs the voltage of given value, gets actual output voltage value from the AD7699 chip in time, makes voltage stabilization in the desired value in the vicinity by the self-regulator module. Test voltages from 2.6 V to 4.2 V, when the output with no load, the output voltage ripple is less than l0 mV,when the output current is 1A ,the output voltage ripple is less than 20 mV.

关 键 词：电子与通信技术 虚拟电源 FPGA AD7699 AD5662 TPS5450 UART通信 

分 类 号：TM910[电气工程—电力电子与电力传动]