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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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P-n Junction
Why gold is added to the p-n junction?
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Signal Transfer
Why are using 4ma to 20ma for signal transfer. Why not 0 to 20ma?
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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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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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How many states does signal has ?
pk4u12
- Jan 21st, 2008
As i think,basically there are 3 states in a signal: on state, off state, tri state
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How to design a software IC using VHDL ?
ravikumar_kiit
- Jan 19th, 2008
You can use software like altera, write the required programme download to the chip,here is your software ic
sukisudha
- Nov 21st, 2007
I cant get your question ... as my knowledge there is no specific software IC...! can you clearly ask your question again???
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What is the difference between PLC and DCS?
jyotiprakashC
- Dec 19th, 2007
...........not necessarily to a single Monitoring system in DCS.Generally we have multiusers like operator, maintenance engineer, application engineer, system engineer, administrator etc in a big proc...
nagasudhakarappa
- Dec 5th, 2007
PLC means Programmable Logic Controller, which can be used to control one particluar control system such as a boiler or a injection system.but DCS is Distributed control syetem, which is used to monit...
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What is RTOS?
sukisudha
- Nov 12th, 2007
RTOS is a real time operating system. the main difference between an operating system and RTOS is the response time.An operating system will or may response for the user input at any time....&nbs...
samake
- Oct 29th, 2007
RTOS stands for "REAL TIME OPERATING SYSTEMS". These are used in real time applications, usually in embeded systems.
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What is difference between Fixed-Bias Circuit & Self-Bias Circuit?
sagar61
- Oct 29th, 2007
fixed bias ckt is a ckt whose value can't be changed i.e has two resistors of same value.self bias resistor are those whose resistance value can be varied
Waleed Shinwari
- Oct 13th, 2007
Fixed bias circuits get their bias voltages from independently designed reference voltage sources (or even something as simple as a voltage divider). Often is the case that the bias may be left for th...
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