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!
Q. Why we Need biasing?
Need for biasing : Baising is necessary to establish the quiescent operating point so that the device operates with the linear region without exceeding the maximum power dissipation curve.
Operating point or quiescent point: It is fixed in the active region of the transistor characteristics within the maximum constraints it either shortens the life time of the device or destroys the device. The operating point is fixed for a particular value of base current IB , collector current IC and collector emitter voltage drop VCE. If any of these parameters change them, the quiescent point tends to change.
Factors affecting Q-point
· Change in ß
· Changes in temperature
Effect of change in temperature on VBE
VBE decreses by 2.5mV per degree C in temperature the base current IB is fixed bias .with the increase in temperature the base-emitter voltage VBE decreases which inturn increases the difference between VBE and collector biasing voltage VCC and therefore base current IB increases.even a small increase in IB increase collector current IC to a larger extent and VCC drops .Hence the Q-point fixed on these two parameters varies.
matlab program for verifying maximum power transfer
Write an m-file "sampling.m", which will take as an input: a signal and a sampling step and will display the sampled signal and the magnitude of its Fourier transform. sampling
Calculate the monthly electric bill for TESTU. Metering is as follows: B 00,000 kWHr C 00,000 kVARHr D 0,000 kW peak demand Facilities Charge = $500
Q. A 230-Vdc shuntmotor delivers 30 hp at the shaft at 1120 r/min. If the motor has an efficiency of 87% at this load, find: (a) The total input power. (b) The line current.
Q. A four-pole dc generator is lap wound with 326 armature conductors. It runs at 650 r/min on full load, with an induced voltage of 252 V. If the bore of themachine is 42 cmin dia
What is the output modes used in 8279? 8279 gives two output modes for selecting the display options. 1.Display Scan In this mode, 8279 gives 8 or 16 character-multiple
Q. A three-phase, 50-Hz induction motor has a full load speed of 700 r/min and a no-load speed of 740 r/min. (a) How many poles does the machine have? (b) Find the slip and t
A DT LTI system has the following impulse response: h(n)=[cos(pi/+delta(n)] u(n-3)u(n-2) (a) Find the system’s frequency response h(e^jw ). (b) Sketch the magnitude and phase respo
Q. What do you mean by Exponent? The exponent field needs to represent both negative and positive exponents. To perform this, a bias is added to the actual exponent in order
a) Include a Smoothing Capacitor to the Rectifier circuit and calculate the Output Voltage and Frequency b) Include a 47Ω Load Resistor and sketch the schematic diagram of the c
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