摘要
目的研制一种电流变高压电源的标准参考信号源.方法用一种具有两个可编程分频器的锁相频率合成电路和8098单片机,按照特定的频率合成算法实现分频参数的计算与系统控制,采用MAX038芯片产生多种波形的高精度输出.结果实现了系统的智能化、数字化.使输出的三角波、锯齿波、正弦波、方波等多种波形能在大频率范围内达到小步距的频率输出,频率精度在0~5kHz间优于0.3Hz.结论已应用于电流变实验研究的高压电源中,使用稳定可靠.
Aim To devise a computerized standard signal generator for a high voltage source used in ER research work Methods A special structure of PLL frequency synthesizer circuit with two programmable frequency divider; corresponding software and 8098 single chip processor were used to complete the calculation of two frequency dividing coefficient and perform the control of system I/O A new sort of ICMAX038 was used to produce several kinds of precise waveform output Results The wide frequency scope and multiple waveform output was realized and the precise output frequency was achieved The frequency error is less than 03Hz when the output frequency varies from 0-5kHz Conclusion The system was used as a standare waveform reference in a high voltage output source that was used in the ER research work and demonstrated good reliability, high precision and easy control
出处
《北京理工大学学报》
EI
CAS
CSCD
1998年第3期316-320,共5页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金
关键词
锁相频率合成器
信号装置
单片机
PLL synthesizer
signal generator
single chip processor