128dB数控衰减器的设计

128dB数控衰减器的设计 DESIGN OF A 128dB NUMERICAL CONTROL ATTENUATOR 石振华 Shi Zhenhua 1 first-author 文必洋 Wen Biyang 1 石新智 Shi Xingzhi 1 刘海文 Liu Haiwen 1 黄为民 Huang Weimin 1 武汉大学电子信息学学院 武汉大学电子信息学学院 College of Electronic Information, Wuhan University College of Electronic Information, Wuhan University 根据ＥｌｅｃｔｒｉｃＥｒａｓａｂｌｅＰｏｔ（Ｅ２ＰＯＴ）电位器的电气参数和数字逻辑电路设计原理，设计和制作了一种可用数码控制的衰减器，该衰减器操作方便，而且可准确定位，掉电后可以保持原来的状态信息，并可提供衰减量的数字显示． Electric Erasable Pot（E 2POT） nonvolatile digital potentiometer is a new device developed in recent years. It can keep its present status and its value can be changed by digital method. This paper presents an introduction how to make a numerical control attenuator capable of being located accurately and keeping the status of demand using four X9314 potentiometers. It can present the indication of decrement. 非易失性存储器 数控衰减 控制方法 数字显示 nonvolatile memory numerical control attenuation control method digital display TN715 国家“863”计划资助 1999-01-01 2021-04-01 1