东北大学12春《模拟电子技术基础Ⅰ》在线作业1、2、3答案
东北大学12春学期《模拟电子技术基础Ⅰ》在线作业1一、单选题：
1. 用恒流源取代长尾式差分放大电路中的发射极电阻Re，将使电路的( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">差模放大倍数数值增大</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">抑制共模信号能力增强</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">差模输入电阻增大</span>
2. 通用型集成运放的输入级多采用( )，中间级多采用共射放大电路，输出级多采用OCL电路。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">共射放大电路</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">差分放大电路</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">OCL</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电路</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">OTL</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电路</span>
3. 在OCL乙类功放电路中，若最大输出功率为1W，则电路中功放管的集电极最大功耗约为( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">1W</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">0.5W</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">0.2W</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">0.1W</span>
4. 在本征半导体中加入( )元素可以形成N型半导体。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">五价</span>
B. 四价
C. 三价
D. 二价
5. 与甲类功率放大方式相比，乙类互补对称功放的主要优点是( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">不用输出变压器</span><span style="FONT-FAMILY: 'Calibri','sans-serif'; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体; mso-bidi-font-size: 11.0pt"> </span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">不用输出端大电容</span><span style="FONT-FAMILY: 'Calibri','sans-serif'; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体; mso-bidi-font-size: 11.0pt"> </span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">效率高</span><span style="FONT-FAMILY: 'Calibri','sans-serif'; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体; mso-bidi-font-size: 11.0pt"> </span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">无交越失真</span>
6. 当晶体管工作在放大区时，发射结电压和集电结电压应为( ) （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">前者正偏、后者正偏</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">前者正偏、后者反偏</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">前者反偏、后者正偏</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">前者反偏、后者反偏</span>
7. 要求输入电阻为1kΩ至2kΩ，电压放大倍数大于3000，第一级应采用( )，第二级应采用共射电路 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">共射电路</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">共集电路</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">共基电路</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">共源电路</span>
8. 功率放大电路的最大输出功率是在输入电压为正弦波时，输出基本不失真情况下负载上获得的最大( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">交流功率</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">直流功率</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">平均功率</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">有功功率</span>
9. 差分放大电路的差模信号是两个输入端信号的差，共模信号是两个输入端信号的( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">差</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">平均值</span>
10. 稳压管的稳压区是其工作在() （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">正向导通</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">方向截止</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">反向击穿</span>
11. 在一个由NPN晶体管组成的基本共射放大电路中，当输入信号为1KHz、5mV正弦波时，输出电压波形出现了顶部削平的失真。这种失真是( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">饱和失真</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">截止失真</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">交越失真</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">频率失真</span>
12. 直接耦合放大电路存在零点漂移的原因是( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电阻阻值有误差</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">晶体管参数的分散性</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">晶体管参数受温度影响、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电源电压不稳定</span></span>
13. 可用于测量二极管的直流电阻R。当图中电源电压E加倍时，R会( ) （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">加倍</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">变大</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">不变</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">变小</span>
14. （满分：4）
A. 70
B. 83
C. 90
D. 100
15. 在下面关于直流放大器的四种说法中，( )是错误的。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">直流放大器的低频性能好</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">直流放大器存在零点漂移</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">直流放大器前后级工作点有牵连</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">直流放大器的高频放大性能较差</span>
二、多选题：
1. 零点漂移就是静态工作时的漂移。 （满分：4）
A. 错误
B. 正确
2. PNP和NPN是一种对称结构。因此将发射极与集电极对调使用，BJT仍然能正常放大信号。 （满分：4）
A. 错误
B. 正确
3. （满分：4）
A. 错误
B. 正确
4. 差模信号是差分放大电路两个输入端电位之差。 （满分：4）
A. 错误
B. 正确
5. 功率放大电路与电流放大电路的区别是在电源电压相同的情况下，前者比后者的输出功率大。 （满分：4）
A. 错误
B. 正确
6. 产生零点漂移的原因主要是晶体管参数受温度的影响。 （满分：4）
A. 错误
B. 正确
7. 只有直接耦合放大电路才有温漂。 （满分：4）
A. 错误
B. 正确
8. 功率放大电路与电流放大电路的区别是前者比后者电流放大倍数大。 （满分：4）
A. 错误
B. 正确
9. 可以说任何放大电路都有功率放大作用。 （满分：4）
A. 错误
B. 正确
10. 放大电路必须加上合适的直流电源才能正常工作。 （满分：4）
A. 错误
B. 正确转载请注明奥鹏作业答案网 www.ap5u.com
东北大学12春学期《模拟电子技术基础Ⅰ》在线作业2
一、单选题：
1. 为了增大放大电路的输出电阻，应引入( )负反馈 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电压</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电流</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">串联</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">并联</span>
2. 交流负反馈是指( ) （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">阻容耦合放大电路中所引入的负反馈</span>
B.<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体">只有放大交流信号时才有的负反馈</span><span style="COLOR: black; FONT-SIZE: 12pt; mso-bidi-font-family: 宋体" lang="EN-US"><o:p></o:p></span></p>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">在交流通路中的负反馈</span>
3. 作低频放大器，集成运放应选用( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">通用型</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">高阻型</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">高速型</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">低功耗型</span>
4. 为了稳定放大电路的输出电流，应引入( )负反馈 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电压</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电流</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">串联</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">并联</span>
5. 在长尾式的差分放大电路中，Re对( )有负反馈作用。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">差模信号</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">共模信号</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">任意信号</span>
6. 要求输出电压幅值为±80的放大器，集成运放应选用( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">通用型</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">高阻型</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">高压型</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">低功耗型</span>
7. 作幅值为1μV以下微弱信号的量测放大器，集成运放应选用 ( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">通用型</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">高阻型</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">高速型</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">高精度型</span>
8. 具有理想电流源的差分放大电路，采用不同的连接方式，其共模抑制比( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">均为无穷大</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">均为无穷小</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri">不相同</span>
9. 在输入量不变的情况下，若引入反馈后( )，则说明引入的反馈是负反馈。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">输入电阻增大</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">输出量增大</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">净输入量增大</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">净输入量减小</span>
10. 集成运算放大器能处理( ) （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">直流信号</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">交流信号</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">直流信号和交流信号</span>
11. 对于放大电路，所谓闭环是指( ) （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">考虑信号源内阻</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">存在反馈通路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接入电源</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接入负载</span>
12. 为使电路输入电阻高、输出电阻低，应引入( ) （满分：4）
A. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">电压串联负反馈</span>
B. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">电压并联负反馈</span>
C. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">电流串流负反馈</span>
D. <span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-size: 11.0pt">电流并联负反馈</span>
13. 集成运放制造工艺使得同类半导体管的( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'">指标参数准确</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'">参数不受温度影响</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'">参数一致性好</span>
14. 欲减小电路从信号源索取的电流，增大带负载能力，应在放大电路中引入 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电压串联负反馈</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电压并联负反馈</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电流串联负反馈</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电流并联负反馈</span>
15. 通用型集成运放适用于放大( )。 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'">高频信号</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'">低频信号</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'">任何频率信号</span>
二、多选题：
1. （满分：4）
A. 错误
B. 正确
2. 若放大电路引入负反馈，则负载电阻变化时，输出电压基本不变。 （满分：4）
A. 错误
B. 正确
3. 放大电路一般采用的反馈形式是负反馈。 （满分：4）
A. 错误
B. 正确
4. 有源负载可以增大放大电路的输出电流。 （满分：4）
A. 错误
B. 正确
5. 运放的输入失调电压UIO是两输入端电位之差。 （满分：4）
A. 错误
B. 正确
6. 在输入信号作用时，偏置电路改变了各放大管的动态电流。 （满分：4）
A. 错误
B. 正确
7. 负反馈放大电路的放大倍数与组成它的基本放大电路的放大倍数量纲相同。 （满分：4）
A. 错误
B. 正确
8. 阻容耦合放大电路的耦合电容、旁路电容越多，引入负反馈后，越容易产生低频振荡。 （满分：4）
A. 错误
B. 正确
9. 电压比较器的输出电压只有两种数值。 （满分：4）
A. 错误
B. 正确
10. “虚短”就是两点并不直接短接，但具有相等的电位。 （满分：4）
A. 错误
B. 正确转载请注明奥鹏作业答案网 www.ap5u.com
东北大学12春学期《模拟电子技术基础Ⅰ》在线作业3
一、单选题：
1. 在脉宽调制式串联型开关稳压电路中，为使输出电压增大，对调整管基极控制信号的要求是 （满分：4）
A. <span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">周期不变，占空比增大</span>
B. <span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">频率增大，占空比不变</span>
C. <span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">在一个周期内，高电平时间不变，周期增大</span>
2. 欲将正弦波电压叠加上一个直流量，应选用 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">同相比例运算电路</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">积分运算电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">加法运算电路</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">微分运算电路</span>
3. 欲实现Au＝－100的放大电路，应选用 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">反相比例运算电路</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">同相比例运算电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">积分运算电路</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">微分运算电路</span>
4. LC并联网络在谐振时呈 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">容性</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">阻性</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">感性</span>
5. 直流稳压电源中滤波电路的目的是 （满分：4）
A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 11.0pt">将交流变为直流</span>
B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 11.0pt">将高频变为低频</span>
C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 11.0pt">将交、直流混合量中的交流成分滤掉</span>
6. 欲实现Au＝－100的放大电路，应选用 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">反相比例运算电路</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">同相比例运算电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">积分运算电路</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">乘方运算电路</span>
7. 欲将正弦波电压叠加上一个直流量，应选用 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">反相比例运算电路</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">同相比例运算电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">积分运算电路</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">加法运算电路</span>
8. 欲将方波电压转换成三角波电压，应选用 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">反相比例运算电路</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">同相比例运算电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">积分运算电路</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">微分运算电路</span>
9. 整流的目的是 （满分：4）
A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 11.0pt">将交流变为直流</span>
B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 11.0pt">将高频变为低频</span>
C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 11.0pt">将正弦波变为方波</span>
10. 欲将正弦波电压转换成二倍频电压，应选用 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">反相比例运算电路</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">同相比例运算电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">积分运算电路</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">乘方运算电路</span>
11. 串联型稳压电路中的放大环节所放大的对象是 （满分：4）
A. <span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">基准电压</span>
B. <span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">采样电压</span>
C. <span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">基准电压与采样电压之差</span>
12. 制作频率为20Hz～20kHz的音频信号发生电路，应选用 （满分：4）
A. <em><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体" lang="EN-US">RC</span></em><span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">桥式正弦波振荡电路</span>
B. <em><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体" lang="EN-US">LC</span></em><span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">正弦波振荡电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">石英晶体正弦波振荡电路</span>
13. 欲将方波电压转换成三角波电压，应选用 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">反相比例运算电路</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">同相比例运算电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">积分运算电路</span>
D. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">微分运算电路</span>
14. LC并联网络当信号频率等于石英晶体的串联谐振频率或并联谐振频率时，石英晶体呈 （满分：4）
A. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">容性</span>
B. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">阻性</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">感性</span>
15. 制作频率为2 MHz～20MHz的接收机的本机振荡器，应选用 （满分：4）
A. <em><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体" lang="EN-US">RC</span></em><span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">桥式正弦波振荡电路</span>
B. <em><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: black; FONT-SIZE: 10.5pt; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体" lang="EN-US">LC</span></em><span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">正弦波振荡电路</span>
C. <span style="FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 10.5pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">石英晶体正弦波振荡电路</span>
二、多选题：
1. 在单相桥式整流电容滤波电路中，若有一只整流管断开，输出电压平均值变为原来的一半。 （满分：4）
A. 错误
B. 正确
2. 因为串联型稳压电路中引入了深度负反馈，因此也可能产生自激振荡。 （满分：4）
A. 错误
B. 正确
3. 运算电路中一般均引入负反馈 （满分：4）
A. 错误
B. 正确
4. 线性直流电源中的调整管工作在放大状态，开关型直流电源中的调整管工作在开关状态。 （满分：4）
A. 错误
B. 正确
5. 在LC正弦波振荡电路中，不用通用型集成运放作放大电路的原因是其上限截止频率太低。 （满分：4）
A. 错误
B. 正确
6. 在输入电压从足够低逐渐增大到足够高的过程中，单限比较器和滞回比较器的输出电压均只跃变一次。 （满分：4）
A. 错误
B. 正确
7. 在稳压管稳压电路中，稳压管的最大稳定电流必须大于最大负载电流 （满分：4）
A. 错误
B. 正确
8. 单限比较器比滞回比较器抗干扰能力强，而滞回比较器比单限比较器灵敏度高。 （满分：4）
A. 错误
B. 正确
9. 当集成运放工作在非线性区时，输出电压不是高电平，就是低电平。 （满分：4）
A. 错误
B. 正确
10. 在稳压管稳压电路中，稳压管的最大稳定电流与最小稳定电流之差应大于负载电流的变化范围。 （满分：4）
A. 错误
B. 正确
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