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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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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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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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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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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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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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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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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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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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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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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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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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Signal Transfer
Why are using 4ma to 20ma for signal transfer. Why not 0 to 20ma?
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P-n Junction
Why gold is added to the p-n junction?
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What is the difference between masking and non-masking?
ANANDM.M4
- Jun 16th, 2009
In 8085 processor TRAP is a non maskable interrupt.Whereas RST 7.5,6.5,5.5, intr are maskable interrupts. Maskable means this interrupts can be left without considering during the execution of the pr...
anukul101
- Sep 24th, 2007
When logic signal is applied to a maskable interrupt input,the 8085 is interrupted only if that particular input is enable.These interrupts can be enabledisabled under program control.
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Digital concept
What is the difference between latch and flipflop?what is the main difference between 8085 and 8086 processors?
ubabmar
- Jun 24th, 2009
In Latch & Filpflop the only difference is control signal. i.e Clock Signal The 8085 is a 8bit processor & the 8086 is a 16bit processor. In 8085 we can't do Multiplication or division by using singl...
kawal_547
- Dec 14th, 2008
Flip Flop stores a binary Bit on a given clock pulse , Latch stores that binary bit unless next pulse is applied, i.e it stores and helds that binary bit unless it is not triggered again
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What CMOS Transistor?
ubabmar
- Jun 24th, 2009
It is the combination?of both nMOS and pMOS, where the important thing is the source of the nMOS must be grounded & pMOS source is connected with VDD. Because nMOS is assert-low logic & pMOS is asssert-high logic.
rasmiranjanbabu
- Jul 5th, 2007
/*Rasmi Ranjan Nayak*/CMOS-->>Complementary Metal Oxide SemiconductorComplementary metal–oxide–semiconductor (CMOS), is a major class of integrated circuits. CMOS technology is used ...
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Binary to Gray Code
Ist convert 8 bit binary to gray code using EXOR ICs and again convert gray to binary code
vicky.bishnoi
- Jun 30th, 2009
Take XOR of binary no. starting from right with the next bit. Add 0 as leftmost bit to get answereg. ?111=7gray code 0 xor 1,1 xor 1, 1 xor 1 i.e. 100 ans.
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Synchronous Circuit
What are the main advantages of synchronous circuit?
bharath_p
- Jul 9th, 2009
Synchronous circuits have common clock and operate utilizing the same. Whereas a aynchronous circuits have different clock frequencies and operate without mutual co-ordination.
djay005
- Apr 10th, 2009
All the inputs are feed at the rising or falling end of the clock signal. This makes the circuit to perform task in sync. so that the functional integrity of the logic device is as expected.
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Package for silicon die
What is the purpose of the package around a microprocessor silicon die?
bharath_p
- Jul 9th, 2009
Packages provide protection to the silicon die from the elements like radiation temperature moisture etc.It is also required to form the body of the device which will eventually help in interfacing it to a system.
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