1000 Threads found on edaboard.com: 555 Time Delay
See this circuit maybe you will find something usefull for you :
Three Stage - Cycling timer Circuit
Stage time delay Circuit
Analog Circuit Design :: 07-19-2013 11:44 :: tpetar :: Replies: 2 :: Views: 634
Do you need to do it with flip-flops?
Can you use a one-shot? A simple 555 circuit can do the trick for you.
Electronic Elementary Questions :: 12-20-2007 20:54 :: VVV :: Replies: 4 :: Views: 725
Hi guys,is there anyway I could get time delay using D Flip flops?I've tried googling it but all I get is info. on 555 IC timers.
What sort of time delay do you want (1mS, 1 min...)?
Electronic Elementary Questions :: 01-13-2010 14:58 :: dunn :: Replies: 6 :: Views: 987
I find the make monostable time delay IC.
What kind of IC exist? (except lm555 IC)
Analog Circuit Design :: 06-08-2011 06:39 :: purpleanger :: Replies: 1 :: Views: 725
A 555 timer IC is an easy and common way to do what you are describing.
Below is a method which is more or less
When the input goes high, the capacitor begins to charge. After a second it reaches about 1.
Analog Circuit Design :: 08-29-2014 19:44 :: BradtheRad :: Replies: 3 :: Views: 179
what is the formula to convert the time delay into tolerance of the signal length with respect to core material ?
PCB Routing Schematic Layout software and Simulation :: 03-19-2003 01:25 :: amjad :: Replies: 0 :: Views: 918
I found a simple program for calculate a time delay for 8051 uc.
I write simple blink program too to test this program.
It's just a led blink every 1s (1000000 us)
I used the delay routine generated from above program.
It very helpful for beginner.
Program+Blink Example in ASM and Proteus here.
Pharaoh Of Egypt
Microcontrollers :: 05-21-2003 17:30 :: SphinX :: Replies: 10 :: Views: 9300
Please provide me with how i can use one of the 8051 timers to calculate a time delay equal 1 second. I'm using XTAL frequncy 11.0592 MHz.
Microcontrollers :: 05-04-2005 15:06 :: Sherif Welsen :: Replies: 2 :: Views: 1700
Any idea as how to create long time delay using 16f628a timer overflow interrupt, so that cpu is free to do other task? I need some function written in CCS PIC for the same?
Microcontrollers :: 05-05-2005 15:04 :: Jack// ani :: Replies: 6 :: Views: 2147
HOW TO GENERATE time delay WITH C++ LANGUAGE? I WANT time delay ON MICROSECOND(560?SECOND).
PC Programming and Interfacing :: 06-20-2005 23:55 :: HARRYNOV :: Replies: 2 :: Views: 897
In verilog, we can use apply b to a after a time delay: a <= #10 b
But in verilog-A, how can realize it?
Here is the verilog-A code:
a = b;
Simulation shows there should be some delay when applying a to b.
Now my method is apply b to a electrical first, then apply the electrical to a. (...)
Analog Circuit Design :: 08-04-2005 00:45 :: flushrat :: Replies: 2 :: Views: 671
My network analyzer can't add time delay(electrical length) into
touch stone file. How can I use ADS to add time delay function ?
Thanks a lot.
RF, Microwave, Antennas and Optics :: 09-18-2005 02:55 :: ajhsu :: Replies: 3 :: Views: 1063
I want a op- amp(LM324) based one second time delay startup circuit
Analog Circuit Design :: 01-07-2006 21:37 :: satya_vijayawada :: Replies: 4 :: Views: 6824
I would like to ask about time delay Neural Network or simply TDNN. Fundamental, trainning, small application in phoneme recognition,... brievly, all about this subjet.
Digital Signal Processing :: 01-21-2006 06:25 :: FMohamed :: Replies: 1 :: Views: 826
i'm trying to make a very simple program in which i'm feeding two signals (basically frequency,square waves) to at89c51 uC to measure time difference between them(one on INT0 and other on INT1 ), but i'm unable to get correct value. I've tried everything, can't understand what mistake i'm making. I'm sending my program (done in Kei
Microcontrollers :: 10-24-2006 06:40 :: lats :: Replies: 6 :: Views: 1611
For the time delay purpose, it is better to use a timer IC, such as LM555. Its dataheet and applications with circuit calculation are everywhere on the internet.
Electronic Elementary Questions :: 11-08-2006 06:32 :: nguyennam :: Replies: 3 :: Views: 1477
use this application for 8051 time delay calculations.its cool n accurate.enjoy
and reply for appericiation if you like it.
Software Links :: 01-29-2007 06:25 :: Farazz :: Replies: 11 :: Views: 11315
Hi, guys, I would like to study time delay circuit, could you give me some useful materials,? thanks!
In my opinion, using inverter and capacitor or current source and capacitor could produce a time delay. are there other methods?
Analog Circuit Design :: 08-11-2007 07:18 :: liuyonggen_1 :: Replies: 4 :: Views: 1030
hi there i need to calculate exact time delay for microcontroller AT89C51. for serial communication i use 9600 baud rate and timer 1 in mode 2, and 11.0592 MHz crystal. i need to know that using the c language how much loop factor should i give to obtain exact 1sec delay.i mean for(x=1, x<=y),,, value of y?
is there any (...)
Microcontrollers :: 08-15-2007 23:24 :: itsfanidotcom :: Replies: 4 :: Views: 3340
I am new to labVIEW.
I am currently working on adding a time delay into my block diagram in description:
There will be a counter(numeric 4) that keeps counting. It will be continuously divided by 30 and the result will be displayed at
Digital Signal Processing :: 10-09-2007 23:45 :: jiaxuan :: Replies: 2 :: Views: 3610
could anyone tell me "what is the time delay between 2 anttenas in an array?"
RF, Microwave, Antennas and Optics :: 12-08-2007 08:42 :: scholar_a :: Replies: 3 :: Views: 624
I have a question: what is the time delay formula betweem microphones of a microphone array?
Digital Signal Processing :: 12-08-2007 09:02 :: scholar_a :: Replies: 0 :: Views: 600
Assume there are 4 microphones in a linear array form like this : # # # #
they are named x1,x2,x3,x4 . someone speaks and these microphones recieve the speech each with some delay corresponding to their distance. We need to find the time delay between microphones. These all are simulating in Matlab , in order to find (...)
Digital Signal Processing :: 02-04-2008 12:28 :: scholar_a :: Replies: 0 :: Views: 479
i am doing ADC interfacing project with four 7 segment disply, i written code in c, i got output flickring while displaying output in 7 segment led, how i can avoid the flickring,and i am using ADC interrupt.and also i used some mathmatical formula for my application in the main function,How i can create the time delay for avoid the f
Microcontrollers :: 03-03-2008 04:21 :: dayal :: Replies: 4 :: Views: 2129
I have a beginners electronics book and I'm trying to build a time delay circuit out of it to use as a counter. However, I've built the circuit somewhere between 15 and 20 times and I still cannot get it to work. I think maybe something is wrong with it, but I've googled every component thoroughly and feel I have a firm grasp of how it (...)
Analog Circuit Design :: 03-31-2008 19:33 :: laxboy130126 :: Replies: 2 :: Views: 1058
Iam trying to glow4 LEDS one by one wen the switch is ON.
Well , i got the o/p for small delays(15 ms and all)
Well wen i increased the delay(by changing the delay subroutine) , the first few LEDS were working and the last ones remaiined off.
In the atched file i am giving l1 a value = 5..... wen i cleared the l1 register ( which on (...)
Microcontrollers :: 06-19-2008 02:39 :: getshameer :: Replies: 1 :: Views: 661
i'm just writing a code for a simple elevator and i have a Q.
how can i make the elevator wait for some time before changing the state; it's just a time delay ...
what is the best way to do it ?
thanks .. :)
PLD, SPLD, GAL, CPLD, FPGA Design :: 12-18-2008 11:18 :: MishaN :: Replies: 1 :: Views: 530
i will plan to design the remote switch board with timer control with mc.i need the ir remote ckt . how to create time delay in pic18F252.anybody help me give some ideas.252
Analog Circuit Design :: 02-12-2009 23:13 :: kanand078 :: Replies: 1 :: Views: 1072
i have deside to make a timer control unit. which ic given the time delay?
Microcontrollers :: 04-08-2009 01:10 :: kanand078 :: Replies: 0 :: Views: 646
Just registered here as I'm just starting out doing a couple of little projects and could do with some advise on this one. (Also posted this in hobby/small projects)
The problem I have is that, when pressing a button (or touching wires, whatever :) ), the relays are rap
Electronic Elementary Questions :: 04-25-2009 05:55 :: cjwood555 :: Replies: 2 :: Views: 642
Guys i just wanted to learn how to invoke time delay interrupt in s7-300. According to sheet OB20 is a time delay interrupt which i included in my project. Than added SFC32 (STRT_INT) in my main program to start the time delay interrupt and wrote a simple program in OB20 which in every 2 (...)
Robotics and Automatics Forum :: 05-21-2009 13:19 :: waqas_here :: Replies: 1 :: Views: 1735
i am trying to design a PFD for a PLL. i want to check if the PFD has a dead zone. so i swept the time delay (td) of one of the inputs to the PFD from 0 to T, where T is the time period of the pulse input. now i want to plot the up/down voltages vs the time delay (td). i am using LTspice. thanks in (...)
Analog Circuit Design :: 08-01-2009 07:54 :: vinay_r :: Replies: 0 :: Views: 1137
when i measure the time delay using network analyzer HP8510C, i get negative and positive time delay. What does negative time delay mean?
Electromagnetic Design and Simulation :: 11-13-2009 20:19 :: mmorsy :: Replies: 0 :: Views: 1005
I need to use a time delay (not clock cycles delay) in one of my systemverilog assertions. It will be a great help if anyone could give me an insight of whether I can do it or not? If yes, then how can I do it.
I am looking for a way to implement something like this:
ASIC Design Methodologies and Tools (Digital) :: 05-26-2010 22:19 :: vivek4m :: Replies: 2 :: Views: 1397
I am a new in pic.I write the program in c language and attach my hard ware digram.This circut include a sensing transformer for sensing input mains.if mains is present get 12v-0-12v and read the pic adc volt and the output is high(RB7). I think
add 5 second time delay for mains sensing(ie input mains present wait 5seconds then t
Microcontrollers :: 07-31-2010 22:38 :: linok04 :: Replies: 4 :: Views: 1286
How to decrease time delay of a two stage open loop comparator?
Electronic Elementary Questions :: 06-20-2011 08:28 :: bunti :: Replies: 4 :: Views: 544
I am new to matlab as well as to digital signal processing. Could someone please tell me how to find the time delay between two signals coming from the same source in a very clear manner? I know that you have to use certain functions like xcorr and findpeaks and stuff like that, but i am not very clear in how to implement them in matlab.
Digital Signal Processing :: 10-27-2011 18:05 :: emmacliff :: Replies: 1 :: Views: 622
I need matlab code. Plz help me. If u know reference materials about time delay estimation in multipath environment. Plz post me.
Digital Signal Processing :: 01-10-2012 00:52 :: ramza038 :: Replies: 0 :: Views: 586
i think u can calculate ur time delay from the following details and make program for delay...
In timers... there are few things to take care of.. first.. amount of time you want delay for, second which timer mode is suitable for that delay. (...)
Microcontrollers :: 02-09-2012 13:00 :: jignesh doshi :: Replies: 2 :: Views: 1657
i know that they are really helpful pm's are wonderfull but can the mod's consider about reducing the time duration between two pm's
About EDAboard.com :: 08-30-2012 10:40 :: jeffrey samuel :: Replies: 9 :: Views: 784
kindly send me a programme in vhdl for generating time delay of 10ms using timer0 mode1
Microcontrollers :: 11-20-2012 01:37 :: Nirjharini :: Replies: 3 :: Views: 460
I an simulating the total settling time of t he operational amplifier. I am connecting it as a buffer and I apply an input pulse. I have no problem to measure the slew rate, but when I tell the calcultaor to calcultae the settling time it take several periods of my signal, why ??
I also would ask you in case if I want to measure
Analog IC Design and Layout :: 12-03-2012 11:36 :: Junus2012 :: Replies: 12 :: Views: 498
i wants to know the exact time delay for receive the ok from gsm module after sending the at command.so,pls help
Embedded Systems and Real-Time OS :: 03-03-2013 05:49 :: Debasis Swain :: Replies: 1 :: Views: 325
I am looking to perform a time delay for 1 hour using assembly language. My timmer is incrementing every 32 microseconds. I have the maths worked out I just don't now what way to go about it. If I run it for 250 times then do that 250 times I can get 2 seconds. If I rund that 225 times and do it 8 (...)
Microcontrollers :: 05-31-2013 06:01 :: sirdizel :: Replies: 1 :: Views: 220
Does anybody know device or circuit for time delay (except LM555 and ADM1087)?
for example: Once i open the SW, the circuit will shut down after 10 sec.
thanks very much))
Analog Circuit Design :: 06-25-2013 06:38 :: z_mx :: Replies: 1 :: Views: 178
i'm having a small doubt regarding the generation of time delay in vhdl. I'm using ALTIUM NANOBOARD 3000(spartan 3an) for my project.Actually i'm sensing a sinusoidal voltage signal through ADC(8 bit), now i want to generate a time delay of 10 ms for the sensed signal. 'after' statement is not working in (...)
PLD, SPLD, GAL, CPLD, FPGA Design :: 07-19-2013 01:41 :: venky228 :: Replies: 3 :: Views: 282
i was not able to find the datasheet, i found this one, but it looks very old the datsheet
Electronic Elementary Questions :: 11-25-2013 07:49 :: yassin.kraouch :: Replies: 25 :: Views: 1285
hi, kindly tell me how to load this ADC 10bit value into timeR0 module, I want to read ADC & to make corresponding time delay using timer0 module.
Microcontrollers :: 08-03-2014 09:02 :: thiru1879 :: Replies: 2 :: Views: 203
You really need to post your schematic. No one is going to know the exact Maplin circuit you "robbed".
Take a look at:
This is the basic 555 monostable circuit. One problem is charge stuck in C1. If you close the switch for several seconds, open the switch and then close it again quick
Hobby Circuits and Small Projects Problems :: 05-18-2009 22:42 :: banjo :: Replies: 4 :: Views: 9975
I'd like to design a circuit such that at first, the circuit is completely powered off. The user pushes a switch, which injects power into the circuit. Then a mechanism maintains the power active, even if the switch has been released. At a later about 3 seconds, when the circuit does no longer need power,
it cuts its own power and sleeps u
Analog Circuit Design :: 05-20-2011 02:00 :: purpleanger :: Replies: 6 :: Views: 960