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.
give easy way to leran circuit analysis
Load Balancing and Load Management It has been observed in which the load on all three phases of a distribution line and between the feeders is not balanced. This output in in
Define addressing modes of 8085. a) Immediate addressing b) Register addressing c) Direct addressing d) Indirect addressing e) Implicit addressing
Explain about the term embedded system. An embedded system is a system which has software embedded within computer-hardware that makes a system dedicated for an application(s)
Consider and obtain the values for R S , R 2 , R 1 , and R D . Apply the rule-of-thumb dc design procedure outlined in this section for a JFET with V P = 3V, I DSS = 20 mA, and a
Design a MOD-6 synchronous counter using T Flip-Flops.
A synchronous motor has the following parameters per phase. E=2kv, Eo=5kv, X2=3ohms, and I=700amps. Draw the phasor diagram and determine (a) power angle delta, (b) active po
Q. What is Ringer Circuit in telephone hand set? Purpose of the ringer is to alert destination party of incoming calls. Audible tone from the ringer should be load enough to be
An ice plant produces 12tonn of ice per day at 0 0 C using water at 300C. The plant operates on reversed Carnot cycle between -15 0 C and 28 0 C. If the actual C.O.P. is 50% of the
Effective Mass The electrons' "wave-particle" motion in a lattice is not the same as that for a free electron, because of the interaction with the periodic potential 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