电路如图11-28所示，欲构成反相微分运算电路，则虚线框内应连接（）。https://assets.asklib.com/psource/2015110114402726496.jpg

A . 正确 B . 错误

A .https://assets.asklib.com/psource/2015103016374077578.jpg B .https://assets.asklib.com/psource/2015103016374077578.jpg C .https://assets.asklib.com/psource/2015103016374077578.jpg D .https://assets.asklib.com/psource/2015103016374077578.jpg

A . A、增大R B . B、减小R C . C、减小R D . D、改变GB

A . 反相比例运算 B . 反相积分运算 C . 同相比例运算 D . 同相积分运算

A . 深度电压串联正反馈 B . 深度电压并联正反馈 C . 深度电流串联负反馈 D . 深度电压并联负反馈

A . 电阻元件 B . 电感元件 C . 电容元件 D . 运算放大器

A . 正确 B . 错误

A . A B . B C . C D . D

集成运算放大器开环<img src='https://img2.soutiyun.com/ask/2020-10-21/972150302890311.jpg' />的幅频特性,如图LT5-14(a)所示,用它组成如图LT5-14(b)所示的反馈电路.试判断电路稳定性,并估算<img src='https://img2.soutiyun.com/ask/2020-10-21/972150334875141.jpg' /> <img src='https://img2.soutiyun.com/ask/2020-10-21/972150350417029.png' />

电路如图4.14所示，试写出u_o与u_i的运算关系。 <img src='https://img2.soutiyun.com/ask/5448001-5451000/9dbb3ab87d6f5d77f4e73f5d55268fc5.gif' />

<img src='https://img2.soutiyun.com/shangxueba/ask/18240001-18243000/18240162/2017032216131427523.png' />

<img src='https://img2.soutiyun.com/ask/2019-05-13/926632091552615.png' />

是 否

A．30 B．-30 C．-3 D．10

一实用微分电路如图题2.4.14所示，它具有衰减高频噪声的作用。(1)确定电路的传递函数V_o(s)/V_i(s);(2)若R₁=R₂=R，C₁=C₂=C，试问输入信号v₁的频率应当怎样限制，才能使电路不失去微分的功能？ <img src='https://img2.soutiyun.com/ask/2020-11-16/97440862525268.png' />

<img src='https://img2.soutiyun.com/shangxueba/ask/18363001-18366000/18363426/2015110110315234892.jpg' /> A．<img src='https://img2.soutiyun.com/shangxueba/ask/18363001-18366000/18363426/2015110110321023485.jpg' /> B．<img src='https://img2.soutiyun.com/shangxueba/ask/18363001-18366000/18363426/2015110110322177199.jpg' /> C．<img src='https://img2.soutiyun.com/shangxueba/ask/18363001-18366000/18363426/2015110110324894811.jpg' /> D．<img src='https://img2.soutiyun.com/shangxueba/ask/18363001-18366000/18363426/2015110110330118892.jpg' />

<img src='https://img2.soutiyun.com/ask/2020-11-16/97440849814341.png' />

A．同相 B．反相 C．差动 D．同相和反相