| 放大器中非线性失真的研究 |
| |
| 引用本文： | 王成华,包骅. 放大器中非线性失真的研究[J]. 南京航空航天大学学报(英文版), 2000, 17(2) |
| |
| 作者姓名： | 王成华 包骅 |
| |
| 作者单位： | 南京航空航天大学电子工程系南京,210016 |
| |
| 摘 要： | 晶体管是非线性器件,在放大信号时会产生非线性失真.针对弱非线性失真,推导了总谐波人(THD)、二阶互调失真(IM2)、三阶互调失真(IM3)和截点(IP3)的表达式,借助于Multisim软件,对晶体管共发放大器、发射极带反馈电阻的失发放大器、差分放大器和发射极间带反馈电阻的差分放大器进行了仿真,并与理论结果作了比较,结果令人满意.
|
| 关 键 词： | 非线性失真 互调失真 截点 负反馈 差分对 |
RESEARCH ON NONLINEAR DISTORTION IN AMPLIFIERS |
| |
| Wang Chenghua,Bao Hua. RESEARCH ON NONLINEAR DISTORTION IN AMPLIFIERS[J]. Transactions of Nanjing University of Aeronautics & Astronautics, 2000, 17(2) |
| |
| Authors: | Wang Chenghua Bao Hua |
| |
| Abstract: | Transistors are nonlinear devices, which can produce nonlinear distortion in amplifier while amplifying signals.For weak nonlinear distortion, the expressions of total harmonic distortion (THD), the second-order intermodulation distortion (IM2), the third-order intermodulation distortion(IM3) and intercept point (IP3) are deduced.With the aid of software Multisim, we simulate transistor common-emitter amplifier, transistor common-emitter amplifier with resistor in emitter, differential amplifier and differential amplifier with resistor between emitters. The simulational results and theoretical analyses are almost the same. |
| |
| Keywords: | nonlinear distortion intermodulation distortion intercept point negative feedback dif ferential amplifier |
| 本文献已被 万方数据 等数据库收录！ |
|
