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.
Introduction: The scheduling system that is followed by the maintenance department is not well established and is dependable on employee's personal judgment. There were a lot o
Q. For a transmission-line model that includes only the series impedance Z, sketch phasor diagrams for: (a) Lagging power factor load. (b) Leading power factor load.
i am implementing a paper "on the chaotic behaviour of buck converter" a want to plot bifurcation diagram by using simulink blocks without using coding is it possible??
problems on combination clipper
Determine Impedance - Resultant current and Power factor: In series R-L circuit, illustrated in Figure , Determine 1. Impedance, 2. Resultant current, 3.
Magnetic materials
Higher order Address Bus The 8085 microprocessor has 8 pins dedicated to higher order address A15 - A8. These pins are used to connect higher order address bus. These p
Q. Three dc generators are operating in parallel with excitations such that their external characteristics are almost straight lines over the working range with the following pairs
Find the rms voltage of the given cardiac wave
Filtering (i) Write an m-file "mymedian.m" which will take an image and filter size and perform median filtering. Display input and output image. Use help median fun
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