Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
V- I Characteristics
The operation of the diac can be explained by imagining it as two diodes connected in series. When applied voltage in either polarity is small ( less than break over voltage) a very small amount of current called the leakage current flows through the diac. Leakage current caused due to the drift of electrons and holes in the depletion region is not sufficient to cause conduction in the device. The device remains in non conducting mode. How ever when T1 is positive with respect to T1 the layers P-N-P-N starts conducting only when applied voltage of T1 exceeds break over voltage V boi . once the conduction starts the current through the diac becomes very large and has to be limited by the external resistance in the circuit.
When T2 positive with respect to Tp the layers P-N-p-N conduct. This happens when the applied voltage of T2 exceeds break over voltage V Bo2. In both the cases the current during blocking regions are small leakage current . the behaviour in both the directions are is similar because doping level is same in all the layers in tow directions. The break over voltage for commonly used disc is about 30v.
When T1 is positive and voltage is less than Vbo1 only a small leakage current flows through the device. When voltage exceeds Vboi it starts conducting and current becomes large. As the current increase the voltage drop across diac decrease. Thus it exhibit negative resistance characteristics. The characteristics of diac in reverse direction when T2 is positive lies in the third quadrant and is exactly similar to that in the first quadrant. The break over voltage VBOi and V Bo2 are exactly equal in magnitude. In both the cases the device exhibits negative resistance behaviours during conduction region. Diac is mainly used for triggering triacs.
Characteristics of magnetic field / flux lines: i. Forming a closing loop ii. Did not crossed against each other iii. Has a certain direction iv. Repel among one anot
1. Look at a method of creating AC from DC. 2. This may involve a microcontroller. 3. Method must be able to synchronise your produced AC to local AC supply. 4. Look at po
outline what three features you would add (choose the three that you feel would be most advantageous) to the 16 bit version of the processor in order to enhance its power.
How control and monitoring has be done - Sensors gather information from application being monitored or controlled. - The data being gathered is frequently analogue in natur
y[n]=2z=1
What are the basic operations of a computer? The basic operations are READ and WRITE.
Explain the term Industry Standard Architecture Bus. The Industry Standard Architecture, bus has been approximately since the very start of the IBM-compatible personal computer
Tick of the property, which is different from the group (A) Ductility. (B) Resistivity. (C) Tensile strength. (D) Hardness. Ans: Tick of the pr
Q. What do you mean by Signal Processing? The essential feature of communication, control, computation, and instrumentation systems is the processing of information. Because of
Calculate the mechanical speed of rotar: An asynchronous machine of 460V, 25hp, 4 poles with rotor wound in Y has the following data (of the side stator): Resistance of the
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd