Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [delay]

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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Delaying a TTL signal

I need to design a circuit to delay an input signal by a given amount of time (around a second, trimmable). The delay should be set through the use of passive components (resistors or capacitors). The input signal is basically a TTL level that goes…
weirdgyn
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What is the simplest way to introduce a ~ 1 second delay in powering on a 230v AC device?

I have three separate lighting controllers which all have a programmed sequence of slowly dimming lights up and down. These are wired in parallel as I want to be able to turn these on and off with a single switch at the wall (for aesthetic and ease…
Anameranac
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Simple voltage dependent on/off-delay switch circuit

I have a set of security cameras powered by a solar powered battery bank. (4S5P LiFePO4 batteries charged by a 100W solar panel). As the voltage varies depending on charge level and how sunny it has been, the batteries can sometimes be drained over…
KristoferA
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How to introduce delay to a signal

I need to introduce a delay to the output of an astable, it needs to be in the order of 10 micro seconds. I have read that optical cable is good for delays, which makes sense for small delays, but I have no access to optical cable for the project I…
Alex Robinson
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Difficulty understanding group delay concept

I’m having difficulty understanding the concept of group delay. The mathematical definition is not difficult, since it says it is the negative derivative of Bode plot’s phase curve wrt frequency. Most often qualitative definitions are easy but the…
user1999
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Alternatives to RC circuit for simple variable delay up to 2 minutes

I'm looking for a simple and cheap way of creating a variable delay of up to about 2 minutes. simulate this circuit – Schematic created using CircuitLab I want to know if there's an alternative to using an RC circuit that is simple and cheap.…
Jodes
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Calculating Circuit Delay

I am trying to understand why the calculating the last delay is \$max(t,mt)+2t\$. I suppose thats derived from \$max(max(t,mt), t)+t\$? But how do you extract the \$t\$ from \$max(..., t)\$ out. UPDATE I also dont get the next part ... whats m?…
Jiew Meng
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A simple delay ON circuit

https://www.homemade-circuits.com/simple-delay-timer-circuits-explained/ I've got a problem with designing a circuit. I've made a box that uses a current sensor module to detect when 230 volt current is flowing through it. This is designed so when…
Stu Boyd
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Is this the correct way of calculating the typical propagation delay?

Since it is typical propagation delay, and it is 74LS86, I will have to use the table on the typical Column with the 86 “2 levels” row right? And how do I get on from here? Correct me if I’m wrong please. I can’t seem to figure out how to…
grumpybear97
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Delaying an electrical signal

I want to be able to delay the signal that goes from the cdi box to the igniton coil on my moped. I would like to be able to control the delay with something simple like a potentiometer, i don't need to be able to know how much the signal is…
Kalle Hiltunen
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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 logic gate: AND - 14ns, NOR - 4ns, NOT - 8ns, OR -…
Modrisco
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Linear Technology LTC6994-2

In my search on building a simple voltage controlled gate delay i stumped upon this chip. After reading the datasheet i'm still very uncertain if this is the ic i need. From what i understand: it is programmed using a simple voltage divider and this…
bopla
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Delay 12v impulse then send it to controller

I have a problem with a circuit that would delay me a signal received from an external source. From the beginning - I need to build a circuit that will give the driver a HIGH signal. This signal is supposed to give when it receives a HIGH signal…
Siemekk
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Circuit to delay sensor output

I have a digital IR-Sensor giving a low output while detecting something. As I want to trigger something for a given time, I am looking for a circuit with an IC which can delay. As soon as the IR-Sensor pulls low, the IC shall output high for a…
jacko91
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End to end delay with MM1 queue

A route of 340 km has 17 hops in between. Effective bit rate per hop is 16.384 Mb/s and average link utilization is 80%. The message is 486 bytes of payload and 28 bytes of header. Velocity is 2 × 108 m/s. How do I find the end to end delay of one…
oddytony
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