淺析Multisim11.0在電路教學中的應用

Summary : Multisim11.0 is one of the simulation software， and it is be applied in the electrical and electronic teaching. Undoubtedly， Multisim11.0 is a powerful software， it is more convenient to be applied in teaching and it can be intuitive to show the student simulation results.

摘 要：Multisim11.0作為眾多仿真軟件的一種，將其應用在電路教學中，無疑是對教學形式的一種良好改革，該軟件的功能強大，在教學中應用也比較方便，且能夠直觀的將仿真結果展現于學生。

Key words: Multisim11.0; Electrical and electronic teaching; Application.

關鍵詞：Multisim11.0；電路教學；應用

[中圖分類號]：TN710 [文獻標識碼]：A

[文章編號]：1002-2139(2012)-02-0075-01

0.Introduction

The traditional mode of teaching pays more attention to the formula deduction and the application of the theorem mainly ，there is a single form of teaching in the classroom ，the effection of teaching is general ，if we apply the simulation software appropriately in the daily teaching，we can show the result more intuitively， and the form of teaching form will become more flexible， also it can improve the positivity of students' study. In addition， if the simulation software is used correctly，it can develop students’ capability about solving problem， it will help students to establish the correct idea of design and analysis.

1.The application of Multisim11.0 in the electrical and electronic teaching

The application of Multisim11.0 in the teaching about circuit analysis

When the circuit only contains a single source， it is a little easier to construct simulate circuit， most of the results about the simulation are correct and not easy to be mistakes， If a circuit contains controlled source， the construction of the circuit is correct or not ，that will affect the results of the analysis directly . For example， a circuit contains a voltage which controls the voltage source， we are required to find out the voltage of circuit which is named “U”.

Above all，we use Multisim11.0 to construct the simulate circuit， and then set each element of parameters， we can select the power (include the controlled source) and load theresistance which we need from the power supply base and database immediately . It is imptotant to know that controlled source has four end to connect to the external components. The control port should be parallel across R at both ends， the negative electrode of the controlled port should be connected to R， the positive electrode should be connected to ground， so it is best to construct the connection of the independent source and resistance circuit ，then the controlled source must be joined. Secondly， the parameters should be set in the properties dialog box. At last ， we can turn on the simulate switch and analysis the result ， we can find that the voltage of the resistance is 16V.

1.2The application of Multisim11.0 in the teaching about artificial circuit

Total emitter amplifier circuit contains voltage gain and current gain ， it is an amplifying circuit which is widely used ， it is usually used as the main part in different kinds of amplifying circuit . The typical points pressure type amplifier circuit ， R3 ，R4 and R2 constitute the points voltage circuit，R5 and R6 are connected to the emitting electrode ， they are used to stabilize quiescent point . When the input of the amplifying circuit add a smaller ac signal which is called Ui， the output will engender an opposite phase and bigger signal which called Uo， it is to realize the functions of the amplifier. The setting of the quiescent point about amplifying circuit is reasonable or not ， it will directly influence on the dynamic performance index of the amplifier circuit . To the basic shot of extremely amplifying circuit， we must set the right static working point and make the communication signals carry load in DC ， it will guarantee the input signal transistor in the whole cycle always work in state amplifier.

2.Conclusion

The range of electrical and electronic course is wider， the simulate technology should be introduced in the process of teaching at the appropriate time. and it can show the analytical result more intuitively. The effect is better than the traditional teaching method. Along with the introduction of the simulate technology in the teaching ， it will play a important in the electrical， electronic and related field.

參考文獻：

[1]李強，侯偉等.Multisim11電路設計及應用.北京：北京大學出版社，2011.

[2]邱寄帆.數字電子技術.北京：人民郵電出版社，2011.

[3]韓軍.Multisim2011在EDA教學中的應用.改革與開放，2010.