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A Class, "A" Amplifier is needed with the following specification:
Collector Current = 5mA
Needed offset voltage across RE= 2V
Lowest input Frequency = 50Hz
Use a BC108B Transistor which has typical parameters:
hfe = 50, VBE = 0.5V, VCE= 4V
1. Sketch the schematic diagram of the amplifier
2. Explain how you a Voltage Gain at 1kHz and what is the value for your circuit?
3. What is meant by capacitive coupling?, why is it used and how have you achieved this in your circuit?
Positive Edge Triggered D Flip Flop In this type of D flip Flop ( 7475) shown in figure the output changes with positive edge of the CLK when CLK changes from 0 to 1
Calculate total resistance among terminal A and B for the circuit below.
1. Modeling of Armature and Field Controlled DC motors: Steady state and dynamic models; development of block diagrams; assumptions used; complexity involved in realistic models;
(a) A second order Sallen and Key Low Pass Active Filter has these component values R 1 =R 2 =15 kΩ, C 1 =C 2 =1 nF and the feedback resistors are R 3 =3.9 kΩ and R 4 =2.3 kΩ
Advantages of SDR 1. Easy to upgrade 2. Great flexibility. It can be dynamically updated with new software without any changes in hardware 3. Due to reduced number of har
define all the symbols with their unit
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A color television receiver is shown in Figure in block diagram form, indicating only the basic functions. The early part forms a straightforward superheterodyne receiver, except f
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