【摘要】 介绍了一种新型的中功率低频(<100Hz)信号源的设计过程,该信号源利用DDS模块作为系统基准信号的发生源,具有精度高,体积小操作方便等诸多特点。中间电路采用可控增益放大器芯片作为信号调理及处理模块,可提高信号整体的稳定性。后级电路采用变压器电路,可以有效放大信号源输出电压,满足各种应用要求。更多还原

【Abstract】 A design procedure of new signal source with intermediate-power and lower-frequency is introduced.This source is based on DDS module which owns strength such as high accuracy,small volume and easy operation.One controlled gain amplifier is used to process signal and it improves the signal stability.A transformer is used in the last stage in order to amplify voltage and meet different kinds of application.更多还原