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Guitar Tuner
What electronics are involved to build a device like a guitar tuner where you press a button to get a specific tone?
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Signal Transfer
Why are using 4ma to 20ma for signal transfer. Why not 0 to 20ma?
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Rectangular Filter
How rectangular filter are practically made?In VLSI chip 1000s of transistors are dopped, specifically categorized. Which method is used to achieve this & how it is done practically?
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Guitar Tuner
What electronics are involved to build a device like a guitar tuner where you press a button to get a specific tone
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8086 Ground Pins
Why do we use two ground pins in the pin diagram of 8086?
sidpun
- Jan 18th, 2009
There are basically two reasons for doing so, one is to remove GROUND BOUNCE one more reason is circuit complexity demands a large amount of current flowing through the circuits, and multiple grounds help in dissipating the accumulated heat so that device will be safe.
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Tristate Signal
What is the meaning of Tristate Signal in Electronics?
Manoj Kumar Meena
- Dec 4th, 2008
An active digital line in case of multiplexed buses has three states. high & low when controlled, and tristated when not controlled or when it is free to be used by other controller. this state where in it's level is not determinable or when it is floating is called tristate.
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Find Conductivity, Resistivity and Resistance.
A silicon sample is 0.5 cm long and has a cross-sectional area of (50x10-4)2 cm 2. Find the conductivity, resistivity and resistance of the intrinsic sample. If the same sample is doped with a donor impurity to an extent of 1 atom per 10 6 atoms of silicon, find the new values of conductivity, resistivity and resistance and compare the results. Assume T = 300 K, n i = 1.45 x 1010 cm-3, μ n = 1500...
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Gray to Binary Code Converter
Design gray to binary code converter?
linzmath
- Oct 30th, 2008
A small exampleBinary of 1011 - 1101Steps 1. write the msb as itseif (here retain fourth bit say 1 ) and it will be the msb of binary. 2. add the msb of binary (say 1) with next bit of gray ...
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CMOS Inverter
How to manufacture the CMOS inverter?
linzmath
- Oct 30th, 2008
It can be made by using pmos and cmos in series. Both gate are connected together and act as input. Source of pmos is connected to supply. drain of?pmos is connected?to drain of nmosand it serves as output. source of nmos is grounded.
nsrividhya
- Sep 15th, 2008
By connecting a pmos transistor and cmos transistor in series and take the output from middle of the connection
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Difference bitween DCS & PLC & SCADA
jibingeorge85
- Aug 26th, 2008
DCS controllers are faster than PLCs, In DCS controller we can adjust the scan time, DCS are costly more inputs and outputs are there for DCS and SCADA does not have a dedicated controller. In a DCS ...
vikibadani
- Feb 21st, 2007
PLC stands for Programmable Logic ControllerDCS for Data control SystemSCADA for Supervisory Control And Data Acquisition SCADA involves supervision by a user, in most cases the plant controller.Where...
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Transistor Bias Current
What is meant by saying at what current is transistor biased?
mackendro
- Jul 29th, 2008
Bias current of a transistor is the preset DC current when no input voltage signal is applied to it.
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ALE in 8085 microprocessor
What is function of ALE in 8085 microprocessor?
sagar61
- Jun 2nd, 2008
AlE stands for the address latch enableit 's working is that it differentiate the address and data bus in microprocessor.when it is high it select address bus .when it is low it select data bus.
sagar61
- Jun 2nd, 2008
AlE stands for the address latch enableit 's working is that it differentiate the address and data bus in microprocessor.when it is high it select address bus .when it is low it select data bus.
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How many type of resistor are there in diode?
s.v.vijayaraj
- May 20th, 2008
They are two types one is forward resistance 1.Forward resistance2.Reverse resistance1.Forward resistanceThis is the resistance offered in forward bias condition of the diode. It is calculated b...
aseemak
- Dec 22nd, 2007
Two, one when forward biased have zero resistance and the other when reverse biased has infinite resistance
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What is Edison Effect?
kirisave
- May 14th, 2008
In a conducting material, the electrons are governed by Fermi-Dirac statistics. The baseline electron energy is the Fermi Energy*, and at low temperatures the electrons all exist at or below this leve...
santosh_soc
- Nov 19th, 2007
Edison Effect is also refferred as "Thermionic emission". Here the charge carriers flow from a charge-carrying surface due to vibrations caused by thermal energy. This phenomenon can be seen...
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What is the difference between Silicon Controlled Switch (SCS) and Gate Turn-off Switch (GTO)?
s.v.vijayaraj
- Apr 5th, 2008
SCS is nothing but the switch (sillicon controlled switch SCR),but GTO is one of the turn off method in SCR.if any other answer for this question please forward me too the answer.
s.v.vijayaraj
- Apr 5th, 2008
Scs is nothing but it is the silicon controlled switch as an SCR ,but gate turn off is that in which one of the turnoff method of SCR
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Why the input resistance of an ideal OP-AMP is infinite and output resistance is zero?secondly, how can we measure these resistances(input and output) in case of an ideal OP-AMP and Real OP-AMP in the following conditions when 1- load is not connected. 2- load is connected.
geogi
- Mar 24th, 2008
Ideal OP-AMP is a power ful concept. If one goes through the history of amplifying devices, it becomes clear that less it loads the previous stage, better the output signal. ie. it is a trend toward...
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Signal Tristate
What is the Tri State of a Signal?
geogi
- Mar 24th, 2008
In digital ciruit, the gate output can be only high or low. In highstate the output source current at a minimum voltage, greater than ~2.8V if load(fan out ) is proper. In low state it wi...
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