基于RC正弦波振荡电路的电子琴设计  

Design of Electronic Organ Based on RC Sine-wave Oscillation Circuit

作　　者：孙文[1] 赵万云[1] 邹子春[1] 袁小平[1] 

机构地区：[1]中国矿业大学,江苏徐州221116

出　　处：《现代电子技术》2010年第9期199-201,共3页Modern Electronics Technique

摘　　要：介绍一种八音阶微型电子琴的设计方法,它采用模拟电路中的RC正弦振荡原理。设计出的电子琴音阶频率满足国际标准,la调频率满足国际标准音C调频率440 Hz。给出电路参数的选取方法和一组参考值。结果证明,用模拟电路方法制作电子琴结构简单,而且成本低廉。The technique of designing micro-electronic organ with eight musical scales is introduced.It gives the method of design parameters based on RC sine-wave oscillation line.The frequency of la is 440 Hz,which meets the international standard on C harmonica.A group of reference value and some methods are given.It proves that it is convient and inexpensive to design micro-electronic organ with this method.

关 键 词：电子琴 模拟电路 频率 RC正弦波振荡电路 八音阶 

分 类 号：TB51[理学—物理]