多相位电源信号发生器的设计  

Design of Multi-phase Power Signal Generator

作　　者：李岩[1] 李宏[2] 高宏[1] 徐进敏[1] 

机构地区：[1]西安石油大学,陕西西安710065 [2]空军航空管制系,陕西西安710077

出　　处：《电力电子技术》2007年第3期94-96,共3页Power Electronics

摘　　要：介绍了基于4片AD9850设计的高精度信号发生器,通过计算机串口发送频率相位控制字,经过MAX232电平转换,再由单片机对数据格式进行转换后送入AD9850,从而产生4路频率在1～6kHz内连续可调、相序正序与反序可变,且相位依次互差45°的正弦波。详细介绍了该多相位正弦波信号发生器的原理组成,给出了系统框图和程序流程图及实用效果。The design of the high-precision signal generator based on AD9850 is analyzed in this thesis.The computer serial-port send out frequency phase control words,which level are transformed by MAX232.Then singlechip changes the data format and transmits it into AD9850.This causes four roads of frequency which can be continually regulated from 1kHz to 6kHz.The phase is changeable between positive and negative sequences and each phase has a 45°sine wave deviation from the last.The text not only introduces the components and work principles of multi-phase sine wave signal Generator in detail,but also supplies its system chart,programme flowchart and practical results.

关 键 词：信号发生器 设计 单片微型机 

分 类 号：TM46[电气工程—电器]