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Hello
I'm working on a course project, it's about face recognition, my professor has given us this information about skin color :
The hue and saturation domains which describe the human skin color can be defined or estimated a priori and used subsequently as reference for any skin color. In...
differences between npn and pnp transisitor
1. in NPN we have currents from Base to Emitter and Collector to Emitter but in PNP is opposite
2. NPN needs positive dc power supply connected to collector but PNP needs Negative one connected to Emitter
3. in NPN major carriers are electrons but...
Hi
We have teacher who always advised us to place capacitors(power supply noise filters) under Processors in a PCB.
Is there anyone who can tell me why?
thanks
common source stage.
Hi
It is the output stage of an Operational Amplifiers
they are not Common source, they are Common drain (source follower)
it is a buffer
this stage has very high input impedance and very low output resistance
denominator -----> Σ a(k)*s^k k=0~N
N: order of Butterworth
a(k) : coefficient of kth term
a(0)=1
a(k+1)=[cos((k*pi)/(2N)) / sin(((k+1)*pi)/(2N)) ] * a(k)
as you may noted the coefficients are symmetrical
for example for fifth order : a(5)=a(0) and a(4)=a(1) and a(3)=a(2)
you can...
High input impedance and large open loop voltage gain make an op-amo perfectly suitable for comparator applications. but...
Comprator Characteristics:
a)Speed of Operation
b)Accuracy
c)Compatibility of output
In some applications they are not important but in precision applications op-amp...
Transistor(bjt) is smaller and lightweight; had no heater requirement , had rugged construction and is more efficient.
there's some difference between bjt and vacuum tube. I advise u completely forget about vacuum there is no usage nowadays, save your time for studying about transistors and...
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