In electronics, a delay is an amount of time between two events. For example, the time between input and output of a signal in a circuit could be referred to as the processing time, or the delay. Sometimes delay is added deliberately, as in certain audio effects.

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Does anyone on here know why a camera's accuracy would drop when you reduce the delay time after the pulses?

I'm using a TSL1401R-LF Linescan Camera that reads in a 1 X 128 array of pixels. Here is the datasheet. When I used 170-microsecond delay the accuracy was pretty high and the camera's outputted values ...
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How can I calculate delay for Nand Bicmos? [closed]

I 'm try writing netlist for nand bicmosvia hspice but its waveform isnot true. I want to calculate delay for nand2 bicmos. please,help me. thanks NAND2 Bicmos Library file .INCLUDE '...
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36 views

How to arrange delays in this digital circuit?

I tried to design transistor level analog driver and here is where I stucked! I have four inputs: A, B, C, D and their NOT's. They are coming from a schmitt trigger. simulate this circuit &...
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2answers
54 views

Introduce delays of alternating value for synthesis on hardware

My question here is with reference to this question previously asked. Currently, I am able to generate delays for each signal as desired. Next, I want to generate different delays for alternate ...
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2answers
94 views

Introduce delay on a single bit signal w.r.t. input clock

I have seen this question and removed the "#.." part of my code to introduce delay, since my code will ultimately run on hardware. Anyway, I am trying with counters and not able to introduce the ...
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3answers
74 views

Measure delay of sound in wood with piezo sensor without an oscilloscope

First of all, excuse my layman terminology but electrical engineering is not my speciality. I am currently trying to measure the delay of a sound wave travelling through different pieces of wood. I ...
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3answers
67 views

Looking for time delay relay or relay circuit that can be reset

Need relay control that results in a closed contact (dry) that is held for 1 minute If during that one minute another signal is received (dry or not) the 1 minute countdown resets. The actual ...
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40 views

Single touch On/Off auto off after 30 minutes

I've been looking for a circuit to turn on a strip of LEDS (12volts 5amps) with a momentary capacitive touch breakout board . I'm looking to have the lights stay on for 30 minutes or use the touch ...
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41 views

What are the different possibilities for delay distortion in fibre optic cabling?

Fibre optic cabling is often known for its extremely high speeds but is there anything that may develop delay issues in transmission via fibre optic cabling?
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1answer
61 views

Propagation delay of a digital logic circuit

I'm trying to answer a question on propagation delay. The question is: Assuming the propagation delays for different circuits are as follow: 4 ns for XOR gate, 3 ns for OR gate, 5 ns for NAND gate ...
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33 views

ideas for a fast acting one shot rise w a 100 ms re trigger delay

I'm doing a hack on a drone deployed camera that will trigger a high accuracy GPS tracker. The issue is I'm using the motor voltage from the camera shutter(no external flash available) via opto ...
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4answers
1k views

Rocket launcher circuit design

I'm building a model rocket launcher with my son. The circuit is very simple as you can see. We want to add a buzzer and a LED/bulb when it is turned on as a warning to stay clear of the rocket. How ...
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38 views

How the relationship between input and output is derived in a comparator?

In the slide 6 of the page about propagation delay of a comparator, the time relationship between input and output is as below. However, I am not sure how the function between input and output voltage ...
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3answers
156 views

How to implement precise delay function in Keil c51 (for c8051) that waits exact amount of CPU clocks, the number of clocks ranges from 1 to 255

So as the title says, I need exact delays, not too long, ideally in the range of 0 - 350 CPU clocks, but if anything would work in narrower range the absolute minimum range is 20 - 127 CPU clocks. So ...
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2answers
43 views

Circuit todelay RS-232 TX pin closure after device power up

We have two devices connected via a cable, an ARM based computer on one side and a sensor on the other. This cable carries an RS232 TX, RX, and ground. In addition there is 28V provided from the ...
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1answer
26 views

ATmega32A _delay_ms after IO calls

I am loading the following code into ATmega32A PU 1535 to flash the LED on pin 40, PORTA 0: ...
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4answers
110 views

How important is gate delay when designing a Circuit?

First year EE student here, we've been learning about CMOS Inverters in class and about the of logic gates, but it hasn't really been mentioned how much this effects the design of a Circuit in ...
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1answer
58 views

I have this timer circuit. Push and release vs push and hold give me different times

I have a timer circuit which I slightly modified from the one in this link I have an image below of what my circuit looks like. My problem is this: When I push my start button and immediately let go,...
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2answers
388 views

Differences in using c user-defined functions on PC and on ARM

I am new to programming in c and to ARM also, so forgive me silly question. I would like to find answer on the net rather than to bother you, but there is not many materials in the web. I am using ...
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1answer
51 views

Switching power supplies with a relay, how to account for delay between connections? [duplicate]

this is my first post on this site (but I will have more, have no doubt), so if I have posted in the wrong section or something please forgive me. Anyway, I am currently doing a battery powered pc ...
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48 views

Relay turn off delay

I need help with my project. I want to design a circuit for my car. It goes like this: Blinker on car is made with 1-filament bulb. I want to use this bulb as indicator and as DRL (made by PWM - ...
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1answer
71 views

555 autostart counting

In a monostable configuration of the 555: http://circuitdigest.com/electronic-circuits/555-timer-monostable-circuit-diagram I have connected pin2 to the ground all the time. My goal is that once the ...
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3answers
72 views

Delayed latching switch

How would I make a switch that is controlled electronically, and has a ten second delay? I have a circuit that will output either 3.3V or 0V. I would like to make a circuit that detects 3.3V, waits ...
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187 views

Static Hazard in Specific Value or Any changes?

I have one solved problem, My teacher solved it as follows: and says with B=C=D=1 for change value of 'A' from one to zero we have Static-Hazard '1'. but I think we should say with B=...
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2answers
68 views

latching with a timed relay

I am an ultra newbie, so please excuse my design/drawing here and I am sure my terms are not correct, but I want to learn. Here is what I am trying to do and a diagram. I think I got it right, but ...
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87 views

Synthesizeable D Flip flop for FPGA

Having played around with Verilog for some time now, I decided to graduate to implementing designs on Alltera CycloneIV FPGA using the Quartus suite. Starting with a simple D flip flop, I face the ...
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55 views

MOSFET Drivers to decrease turn on/off times

Using MOSFET drivers, can one decrease the turn on/turn off time of MOSFETs than indicated in their datasheet. If so, by how much? Is it in the scale of orders or just barely?
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2answers
143 views

Setting up Internal Oscillator with PIC16F1829

I just started working with PIC microcontrollers and I am currently using MPLAB X IDE with a PIC KIT 3. I've been trying to get a simple LED blink code to run on a PIC16F1829 using the internal ...
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1answer
152 views

pulse width modulation

I need help on number one of this practice assignment. I barely learned about this so it is kind of hard me to understand it right now. So any advice or help is appreciated. I want to determine the ...
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1answer
43 views

Frequency Shift a Bode Magnitude Plot

for the 2nd order response of $$1-\dfrac{2\zeta\omega s + \omega^{2}}{s^{2}+2\zeta\omega s + \omega^{2}}$$ I get the plot shown in blue. How do I go about getting the plots shown in red and green ...
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1answer
41 views

how to get delays of a circuit under process corner in hspice?

my circuit is composed of a chain of inverter (delay line), and i want to see how the delay of this chain of inverter behave in process corner? i want to know if the delay line will be still ...
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232 views

Arduino analogread: neighbor pin noise on ADC even with big delay

I'm reading two analog input values (light sensors, with pull-down resistors) on an Arduino MEGA 2560. One pin is supposed to report the value of 0, while another pin is supposed to report a value of ...
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115 views

How does a time delay contact remain open

If input voltage energizes a repeat cycle time delay relay coil, and the contact closes thus energizing output to the load for t1, how is the contact is able to open after t1, if it's still energized ...
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47 views

Improve a simple “magnetic alarm” with a timer, to extend the ringing time

I've bought this simple "alarm" for a door: Which is internally provided with a reed switch; inspecting the internal circuit using a multimeter, I figured out that when the magnet is placed near to ...
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1answer
55 views

Understanding critical paths

So I'm having trouble understanding critical paths. I have the following example question: Draw the critical path that shows how fast the counter can count: Delays are specified as follows: Delay ...
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1answer
61 views

propagation delay (low -> high / high-> low)

i build a 2x2 bit multiplier circuit where i take a number (a1a0) and multiply it by (b1b0) . and im asked to calculate the time propagation from high to low , and from low to high for every input to ...
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1answer
63 views

How to delay a relay closing?

I have a situation where I'd like to delay the closing of an off the shelf relay by ~5 seconds. Assuming it is a 5V coil, and switching 12 V, I'd like the following: t 0:00: 5v applied to input, ...
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2answers
263 views

How can I set a delay in Verilog using a clock?

I'm trying to write an always block that will open a valve and then keep it open for a few seconds and then close it if needed. The valve opens when the input is 1 and it closes when it's zero. How ...
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4answers
479 views

How does a logic gate behave with an input changing faster than its propagation delay?

I am attempting to create a simple logic circuit simulator. I am having a hard time figuring out how does a logic gate behave with an input changing faster than its propagation delay. When attempting ...
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1answer
96 views

FRDM-KL25z assembly delay loop causes reset

I'm currently working on a project using the FRDM-KL25Z development board and programming using Keil MDK-lite (5.14a). What we're supposed to do is create a simple traffic light using three ...
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1answer
87 views

Delay/Disable Output Pin On Power On Using Electronics

I have a module that outputs 3V, has a 'Common' terminal (GND), and a switch terminal. The latter two can accept a toggle input OR a pulse input, and internally it switches on a light. I have a touch ...
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103 views

Delay/smooth sensors & buttons (not software side)

Is it possible to create long rising/falling delays/heavy smoothings only using capacitors and basic electronic elements ? (alternatively also IC's, but no 555) This is what i know: Capacitior's ...
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54 views

How do I make a 250 second delay on a PIC16F84A? [closed]

How to write a 250s delay using assembly for my PIC16F84A?
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1answer
225 views

AVR asm wait loop explain

Can someone please explain me this code (it is from wait loop calculator), I cannot clearly understand calculation. ; Delay 1 600 000 cycles ; 100ms at 16 MHz ...
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3answers
72 views

How to calculate overall propagation time for circuitry

Below is circuitry including a 2-input NOR gate, a 2 input OR gate with 2 inputs inverted, and an finally going through an AND gate. Through experimentation I measured the propogation delay of each ...
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1answer
40 views

Timed on/off switch problem

I'm doing a small project for my school and the main point of my problem is that I need a simple circuit, that could activate for a fixed time when the mains power goes on. For example: I have a TV, ...
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3answers
179 views

PIC MCU: Software or hardware delay?

Experimenting with blinking LEDs, I learned about creating delays with either a software loop or a timeout from a timer. I know that for a simple blinking LED program, where the processes aren't that ...
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1answer
109 views

AVR: Facing problem with Timers

I need a 13 Microseconds delay for transmitting IR at a 38Khz carrier wave. My chip (ATTiny84) is running at 8Mhz. I cannot figure out what's the problem in my code: ...
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1answer
219 views

Capacitor Delay Circuit

I`m trying to create a basic delay circuit using a capacitor. I am using a momentary switch in series with a 220 Ohm resistor, a H332 100uf 25V rated capacitor and an LED, all connected to a PP3 8.4V ...
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1answer
59 views

What is the effect of this delayed statement in the following process?

Hi guys in the following process how the delayed assignment should be interpreted? ...