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prateeksikka
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Posts posted by prateeksikka
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then u might have to study the pin assignment diagram and perhaps the datasheet .u may have to buy an explanatary book for it from the market if u have not got one along with it.
I have not worked on zilog processors i use Intel and sometimes Atmel. Although pin assignments are only a little different. ;D
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many articles here say the same thing.
controller is a full PC u can use all its features.
for any control application just like a stepper motor or even an induction motor.
;D -
hi there!
i guess audioguru's answer is 100% correct.
but milliohms?where do u come across such low value resistance?
audioguru,
i have seen commercially available resistance minimum of 1 ohm.what about u?
;D -
hi kevin!
we use negative feedback through an emitter resistor just to stabilize the gain and make the amplifier much more linear.
and to increase the range of i/p signal. ;D
hi audioguru!
do we have any disadvantage of a transistor with 2000 value of beta as amplifier or is it an excellent amplifier?what do u think? ::) -
hi audioguru!
here we reach a conflict ,for a good amplifier we need a low Re (emitter res) as u said and at the same time low Re causes the transistor to limit the i/p signal below a certain value. higher value of Re enables us to feed a gignal more than say 1 V.
;D -
hi audioguru!
i feel that it is the value of beta which is responsible for determining the gain of the transistor.
It is its high value which makes it a good amplifier.
;D -
hi harikannan!
What is the application for which u are building this machine?
SYSTEM INTEGRATION! -
hi there mrohler!
Both of 80386 and 80486 are microprocessors.
U can use them both for any control application u can think of.
;D -
hi digital!
u r yourself digital !
anyway for mod 5 counter u need 5 t states and 3 JK flip flops.
Do u need a definite pattern to be followed while counting like from 0 to 4 or something like that ? ;D -
using a multimeter but with some jiggling u can come to know about the terminals base,emitter ,collector.Emitter conducts most heavily.(Q2)
It is the base-emitter voltage which drives the transistor into saturation and makes the heavy current to flow from collector to emitter.(Q3)
It is the beta and internal mechanism of conduction in a transistor the answer to the
first question. -
hi lucky!
i dont know about your country ,the mobile revolution is still on,and i would go for communication especially mobile and satellites.
Microelectronics deals with the miniaturizing world and is a good subject too.
power and control are basically electrical subjects.
Boring for me! ;D ;D ;D -
does anyone know their real names?
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hi kevin!
At any instant the net voltage across load is the phasor sum of three voltages.The resulting waveform is much smoother. Thats 3 phase! better than 1 phase!
;D ;D ;D -
hi audioguru!
we can no doubt have low i/p ang high o/p impedance but what about matching?
Do we desire high or low i/p impedance for a device? -
hi guys!
On my way on a national highway in India,I again saw those balloon like things on the high voltage transmission lines.I am confused!
What are they? :( -
hi audioguru!
Isnt it true what i said?I have read and in fact seen 3 phase motors running much more smmothely! ;D
pistons? :o -
hi there!
Three phase and in general multiphase systems are generally prefered to ensure the smoothness by which load runs especially a motor.Knocking is generally less of a problem in 3 phase motors than 1 phase motors. -
Some TVs also use some materials to enable the environment in which electrons move just before striking phosphorus on the screen. 8)
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No doubt u can use it as a controller if u are familiar with the purpose of all the pins and their functions. Study about its ports and pins.
In fact PC is a controller ,I used one one of its ports called parallel port to control my LCD and daily i use it for my printer!
;D ;D ;D -
hi there!
by default u have 00 data at all locations in a ROM.So no LED had glown when u just give supply. When u make a data pin high u write 1 at some place which is reflected onto the data line so an LED had glown!
in third case i guess the address and data lines may be multiplexed when u addressed a particular location,that particular data came onto the data bus and made the LED glow!
good work buddy! keep it up! -
a part of your project would be to test if this ROM is ok.
write data say FF into all locations of ROM through a parallel port interface like LAB TOOL 48. and retrieve the data back .Can u write some code in C or assembly language or even VB?
;D -
its feebly famous here in india ,
we prefer to use Yahoo Messenger here ;D -
proview 32 is such a program using this kit u can program almost any controller
and that too writing the code in C purely! ;D -
this project mainly requires u to have a good hand one one programming language good luck! ;D
transistors
in Electronics chit chat
Posted
Hi audioguru!
do we require a high or low beta for a high gain amplifier?
How do we chose beta for a given application?
;D