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Ripple counter using edge-triggered JK flip-flop
In a ripple counter using edge-triggered JK flip-flop. the pulse input is applied to the 1. clock input of oll flip-flops 2. clock input of one flip-flop 3. J and K input of one flip-flop 4. J and K input of all flip-flops
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Satellite Communication
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Mod-N counter
How can we identify how many states the ripple counter is having by looking at the figure as it can also have some invalid states?
RZara
- Nov 24th, 2009
If in the ripple counter, there are 3 flip flops, it is a mod-8 counter which counts from 0-7(binary). If additional circuitry is used, then it is a counter where few states have been trapped. Usually...
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Oscillator
Which oscillator is best for general purpose?
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Digital Vs Analog Technology
Where will Digital and Analog technology come into play in the CCTV technology in terms of data storage.
RZara
- Nov 24th, 2009
Data storage is mostly digital now-a-days because of cost,density,ease. CCTV or anything it may be, digital data is stored in ROM ( Read only Memory ) or EPROM (Erasable and Programmable ROM) or Flash...
vicky kumar
- Aug 7th, 2009
In digital technology, there are only two states, logic 0 and logic 1. They are fixed points. In analog technology, any two points can be represented as two logic levels.
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Regulators without Filters
What problem arise if we use regulators without/before filters?
jayakumarau
- Nov 15th, 2009
Filters are used for reducing ripples. A regulator output will be having many ripples. So filters are used in a circuit for conversion of pulsating AC to DC
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Length of IR(Instruction register)
What is the length of IR(Instruction register) 1. 6 bits 2. 8 bits 3. 12 bits 4. 16 bits
chakr
- Nov 7th, 2009
Length IR depends on type arch we are using 8085 it's 8 bits in 8086 16 bits and in mips we have 32 and 64.
uday
- Mar 19th, 2007
Hai it is 16 bits guys
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Which of the following remarks about BDC is true ? 1. it is an 8-4-2-1 weight code 2. complement of a number can be found efficiently 3. (12345678)10 needs 4 bytes in BCD representation 4. conversion to and from the decimal system can be easily done
mahesh_venkat36
- Oct 12th, 2009
1,3,4 are correct options Because BCD is 8-4-2-1 weighted code, whose complement cannot be found easily, given number requires 4 bytes as it is 8 digit number (4 bits for number), it is easily converted to binary.
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Why the feeding frequency to a microprocessor is twice the operating frequency
chakr
- Nov 7th, 2009
In 8085 there is an internal circuit wich devides the frequency feeded by external device by two.. 8085 operating frequency is 3MHZ we have to feed 6MHZ to it
nitin
- Feb 23rd, 2007
In order to execute machine cycle Mp need twice frequeny that of operating .
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FET Voltage Control Device
Why FET is known as voltage control device?
Dipankar Golder
- Oct 26th, 2009
Since in an FET the value of the current depends upon the value of the voltage applied at the gate and drain so it is known as voltage controlled device.For example: In a MOSFET, the current from drai...
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Potential Transformers
What are potential transformers?
bharati.anil
- Oct 20th, 2009
Potential Transformer is designed for monitoring single-phase and three-phase power line voltages in power metering applications. The primary terminals can be connected either in line-to-line or in li...
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BJT Control Device
Why BJT is called current control device?
tiya18leo
- Oct 8th, 2009
Because the input current of the transistor controls the output current, for example in CE configuration base current Ib controls the output current Ic.
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Tristate Signal
What is the meaning of Tristate Signal in Electronics?
ravi132
- Jul 20th, 2009
Tristate device is 3 terminal device & it has three states. They are logic 0, logic 1 & high impedance state or tristate. This?device?can be used as switch. For ON logic 0 or logic 1 (depending on active low or active high appl) OFF as high independence state.
ubabmar
- Jun 24th, 2009
In Digital two states known as '0' & '1'. Apart from these two we have another state that known as "Tristate".i.e. In digital '0' for 0V to max of 0.4 to 0.8 V. &...
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Design a digital circuit which has one input two output and one select lineinput should be 1000khzoutput should be 500khz and 250Khzselect line either 0 or 1if 0 select 250khz if 1 select 500khz
bharath_p
- Jul 9th, 2009
1000kHz (input) to a DEMUX with a Select line.1st output connected to D Flipflop (acts as divide by 2) thus 500kHz.2nd output connected to TWO D Flipflops (acts as divide by 4 ) thus 250kHz.
chaitra muralidhara
- Jul 16th, 2008
Demux is the circuit which satisfies the given requirement,if 0 is given to the selectline,250khz o/p is provided else 500khz o/p is provided.
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I am final year student of electronics and communication engg. I want to know at which place we have to apply for the research work in electronics field in india if i am interested in electronics and chip level designing, and for this what criteria is required?
bharath_p
- Jul 9th, 2009
If it is about research try Indian Institute of Science and for VLSI try M S Ramaiah School for Advanced Studies: both in Bangalore.
pk4u12
- Jan 21st, 2008
As i think, you should go for psu or give the enterance of cdac for better jobs in EC core....like texas,erricsson,freescale,smd,etc
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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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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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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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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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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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