王軍強++吳晶


摘 要 靜態工作點電路是“模擬電子技術”課程的重點和難點。傳統的教法中注重理論分析和推導過程,但電路中信號的變化是一抽象過程,在初學時學生理解困難,講授難度大。本文針對傳統教學中存在的問題,將仿真軟件Multisim應用到教學過程中,將抽象難于理解的內容,通過仿真圖形化展示,同時合理設置教學過程環節,有助于培養學生發現和解決問題能力。
關鍵詞 靜態工作點 教學方法 Multisim仿真 模擬電子技術
中圖分類號:G424 文獻標識碼:A DOI:10.16400/j.cnki.kjdks.2015.12.057
Research and Improvement of Static Operating
Point Stabilizing Circuit Teaching Design
WANG Junqiang[1], WU Jing[2]
([1] School of Physics and Electronic Information, Luoyang Normal University, Luoyang, He'nan 471022;
[2] Information Engineering College of He'nan University of Science and Technology, Luoyang, He'nan 471000)
Abstract Quiescent operation point is important and difficult "Analog Electronic Technology" Course. The traditional emphasis on teaching the theoretical analysis and derivation, but the change in the signal circuit is a process of abstraction, in the beginner students to understand the difficulties, teaching difficult. In this paper, the traditional teaching of the problems, the simulation software Multisim applied to the teaching process, difficult to understand the contents of the abstract, the simulation graphical display, while setting a reasonable part of the teaching process, to help students discover and problem-solving skills.
Key words Static Operating Point; teaching methods; Multisim simulation; Analog Electronic Technology
0 引言
“模擬電子技術”是一門理論性和實踐性都很強的課程,也是電子信息類專業一+門重要的專業基礎課。該課程特點為非線性、復雜性、工程實用性,因此在對電路進行分析計算時,要從實際出發,抓住主要矛盾,用工程的觀點進行估算,弄清楚電路的實質,這需要根據該課程特點,不斷采用新的教學方法,將計算機仿真技術應用在課程教學過程中。①本文將根據該模擬電子技術課程中放大電路靜態工作點穩定一節教學內容中采用的教學方法進行討論。
1 存在的問題
本節內容的難點是理解什么是靜態工作點?靜態工作點對放大電路會產生什么樣的影響?如何合理地設置靜態工作點?但放大電路中的靜態工作點是一個抽象的概念,不易理解。傳統的教學思路如下:首先分析電路圖,接下來對該電路模型進行定量的分析計算;最后進行驗證性實驗。按此做法理論教學與實驗教學相分離,教學效果較差,學生學習的積極性不高,整個教學過程中學生只是被動接受,很難調動學習興趣。……