Multisim平台下三极管放大电路动态范围扩展与失真控制研究

he transistor, as one of the most fundamental and core semiconductor devices in analog circuits, its amplification characteristics constitute the cornerstone of analog circuit design. This paper will deeply explore the design principles and methods of transistor amplification circuits, and combine with analog simulation technology to conduct detailed analysis and optimization of typical transistor amplification circuits. Starting from the basic characteristics of the transistor, it will analyze its current amplification mechanism and performance in different working states. As well as the common types of transistor amplification circuits, including common emitter amplification circuits, common base amplification circuits, and common collector amplification circuits, it will analyze their respective characteristics and application scenarios. On this basis, using the Multisim simulation software, these amplification circuits will be modeled and simulated. By comparing the simulation results with theoretical analysis, the effectiveness and reliability of simulation technology in the design of transistor amplification circuits will be verified. And for problems in practical applications, optimization design schemes will be proposed and verified through simulation for their performance improvement effects.