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!
Turn-on, turn-off, and storage delay:
The Bipolar transistor shows a few delay characteristics while turning on and off. Most of the transistors, and particularly power transistors, show long base storage time that limits maximum frequency of operation in switching applications. One technique for reducing this storage time is using a Baker clamp.
Transistor 'alpha' and 'beta':
The proportion of electrons capable to cross the base and reach the collector is a measure of the BJT (bipolar junction transistor) efficiency. The heavy doping of the emitter region and light doping of the base region origin several electrons to be injected from the emitter into the base than as compared to the holes to be injected from the base into the emitter. The common-emitter current gain is presented by βF or hfe; it is approximately the ratio of the DC collector current to the DC (direct current) base current in forward-active region. It is generally greater than 100 for small-signal transistors but can be smaller in transistors intended for high-power applications. An additional significant parameter is the common-base current gain, αF. The common-base current gain is almost the gain of current from emitter to collector in the forward-active region. This ratio generally has a value that is close to unity; approximately between the 0.98 and 0.998. Alpha and beta are more precisely related through the following identities (NPN transistor):
αF = Ic/IE
βF = Ic/IB
βF = αF / (1- αF) ↔ αF = βF / (βF +1)
a single stage amplifier circuit
WHAT IS FET
GIS Based Mapping of Electrical Network: You have learnt in which the Geographic Information System is a system of mapping of the complete electrical network. The question we
Q. Basic Characteristics and Operation of MOSFET ? In Figure the gate-to-source voltage is set to zero volts by the direct connection from one terminal to the other, and a volt
An eight pole dc generator has an armature wound with 768 conductors each capable of carrying 50A without overheating. The emf generated in each conductor is 1.5V. Calculate the th
a. Explain the following terms: (6) (i) Persistence of vision (ii) Flicker in motion pictures b. What is meant by blanking? What is the need of blanking pulses? Compare th
Q. Determine L and C of the band pass filter circuit of Figure to have a center frequency of 1 MHz and a bandwidth of 10 kHz. Also find the Q of the filter.
Q. (a) A balanced wye-connected load with per-phase impedance of 20 + j10 is connected to a balanced 415-V, three-phase supply through three conductors, each of which has a series
This example is concerned with steady-state sinusoidal analysis by using mesh equations and MATLAB. Let us consider the circuit shown in Figure and find the input impedance at the
Draw and explain the circuit of feedback amplifier
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