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该文介绍了应用3个运算放大器实现双二阶型函数的电路,从而设计有源滤波器;即应用"在系统可编程模拟"器件(ispPAC10)基本单元电路的功能构成双二阶滤波器,在PAC-Designer软件的开发平台下,实现有源滤波器的设计、仿真、下载. 相似文献
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INTRODUCTION With the development of super conductor, the PWM-CSC is being increasingly studied in recent years owing to its advanced features including sinu- soidal source current at unity power factor and high quality dc output current (Zhang and Ooi, 1993; Kazerani and Ye, 2002; Vincenti and Jin, 1994; Wang, 2000). However, under unbalanced source voltage, considerable output second harmonics and input low-order harmonics are produced due to negative sequence voltage (Vincenti and… 相似文献
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针对浙江大学电子技术课程的实验教学需要,开发了车轮测距和测速实验项目。该实验要求能测量特定自行车的行驶速度和行驶距离值;速度(km/h)采用两位数码管显示,距离采用三位数码管显示,测距测速误差≤5%,响应时间≤5s。 相似文献
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