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脉宽调制型正弦波铃流信号源的研究
A Research of the Modulating Pulse Wids Model Sine Wave Bell Cuqrent Sourse
【摘要】 本文介绍了采用新的脉宽调制原理和微电脑技术,研制出的25赫兹正弦波铃流源。并对该铃流源做了较客观的估价,提出了改进设想和予期达到的目标。
【Abstract】 In this paper, using a new principle of PWM and the technique of storage-system in a microcomputer are discribed, and a 25 Hz sinusidal bell current source has been developed. The bell current source is objectively evaluated. Finally improvement conception and expected attainment target are proposed.
【关键词】 铃流源;
脉宽调制;
正弦波;
电话交换机;
【Key words】 bell current sourse; modulating pulse wids; sine wave; telephone exchange;
【Key words】 bell current sourse; modulating pulse wids; sine wave; telephone exchange;
- 【文献出处】 沈阳化工学院学报 ,Journal of Shenyang Institute of Chemical Technology , 编辑部邮箱 ,1989年01期
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