The bipolar transistor as a semicontuctor switch

Τίτλος

The bipolar transistor as a semicontuctor switch

Θέμα

Metal oxide semiconductor field-effect transistors--Testing

Insulated gate bipolar transistors

Δημιουργός

Constantinides, Andreas

Πηγή

Higher Technical Institute

Το πλήρες κείμενο είναι διαθέσιμο από το Υπουργείο Ενέργειας, Εμπορίου Βιομηχανίας και Τουρισμού.

Εκδότης

Library of Cyprus University of Technology

Ημερομηνία

2000

Δικαιώματα

Απαγορεύεται η δημοσίευση ή αναπαραγωγή, ηλεκτρονική ή άλλη χωρίς τη γραπτή συγκατάθεση του δημιουργού και κάτοχου των πνευματικών δικαιωμάτων.

Μορφή

pdf

Γλώσσα

en

Τύπος

text

Αναγνωριστικό

EED0359

Σύνοψη

1.1 INTODUCTION:
The application of semiconductor devices in the electric power field has been steadily increasing, and a study of power electronics is now a feature of most electrical and electronic engineering courses.
The power semiconductor devices, such as the diode, thyristor, triac, and power transistor, are used in power applications as switching devices.
The development of theory and application relies heavily on waveforms and transient responses, which distinguishes the subject of power electronics from many other engineering studies.
In the second chapter is where we study the equipment and materials and get a decision which are the proper to use in this project.
Is very important to study the characteristics of the transistors and the characteristics of the diodes that are going to be used.
Then we have to study the junction transistor as a switch and compare it with some other devices such as MOSFET, thyristor, IGBT.
Finally in this chapter we study some applications of the transistor as the DC chopper and AC voltage regulator to be sure what materials we need and ~hat we should expect on the final results of the experiments.
In the third chapter we make the graphics, we tell how we make each part of this construction, and talk about the materials we finally choose to use in the project. We also talk in details for what are the important things we should know and care about each part of this construction.
Chapter four is the chapter where we have the final results, is the chapter of the experiment results.
To take these results we have to connect the construction as a DC chopper and then with the help of the oscilloscope we take the results which will help us to investigate the operation of the DC chopper.
In order to improve the output of the DC chopper we add some devices, each time we add a device in the construction ,we take the appropriate graphs in order to show the improvement. All these results and graphs are in chapter four.
Finally in chapter five we talk about the results of the project, our conclusions and
observations for the operation of the DC chopper.