Analog Electronics
模拟电子技术是电气与电子类专业的核心专业基础课，研究半导体器件与模拟电路的工作原理及设计方法。课程内容包括二极管与整流电路、双极型与场效应晶体管的特性与偏置、共射共基共集三种基本放大电路、多级与差动放大器、集成运算放大器及应用、反馈放大器与稳定性、功率放大器与稳压电源。课程强调工程估算与仿真验证相结合，为后续模拟集成电路与电力电子学奠定基础。
Analog Electronics is a core course for electrical and electronic majors, studying the principles and design of semiconductor devices and analog circuits. Topics include diodes and rectifiers, BJT and FET characteristics and biasing, common-emitter/base/collector amplifiers, multistage and differential amplifiers, operational amplifier applications, feedback amplifiers and stability, power amplifiers, and voltage regulators. The course combines engineering estimation with simulation, preparing students for analog IC design and power electronics.
学生设计一个增益不低于 40 dB、带宽 20 Hz~20 kHz 的两级晶体管音频放大器，引入电压串联负反馈以稳定增益并改善线性度。要求在 Multisim 中完成原理图设计、直流工作点与交流分析，测量增益、输入输出阻抗与总谐波失真，提交设计报告、仿真文件与元器件清单。
Students design a two-stage BJT audio amplifier with gain no less than 40 dB and bandwidth 20 Hz-20 kHz, introducing voltage-series negative feedback to stabilize gain and improve linearity. They complete schematic design, DC operating point, and AC analysis in Multisim, measuring gain, input/output impedance, and total harmonic distortion. Submit a design report, simulation files, and bill of materials.