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Questions tagged [pulse]

A pulse in signal processing is a rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value. There are many examples of a pulse function including: Step/rectangular pulse, impulse/dirac pulse, triangular pulse, sawtooth pulse, sinc pulse, Gaussian pulse, etc.

3 votes
2 answers
1k views

arduino pulse to transistor power maximum

Hello I want to get a confirmation that what I am doing is not going to fry my Arduino Mega. The sketch I am using to send a pulse out on pin 8 to a 2n3055 that is switching 12 volts is this: ...
bradley's user avatar
  • 31
1 vote
1 answer
900 views

High power pulse generator

I'm designing a relatively high power pulse generator. Basically I have a microcontroller generating a clean square wave (0-3.3 V or 0-5 V) which then goes into my amplification circuitry. I want to ...
lenny's user avatar
  • 11
10 votes
5 answers
7k views

Use of LED driven over-current in a strobe lamp

I'd like a strobe lamp using RGB LEDs as it's light source. I want to pulse the LEDs with very short duration pulses (ideally microseconds or less) at around 100 Hz. The total on time for the LEDs ...
Benjohn's user avatar
  • 249
1 vote
2 answers
6k views

P-Channel Depletion Mode MOSFET for Negative Pulses

Would a p-channel depletion mode MOSFET make the most sense if the goal is to produce a high-voltage negative square pulse? My reasoning: MOSFET, because we're talking about a kV square pulse with ...
higgy's user avatar
  • 63
0 votes
1 answer
3k views

Arduino beacon for IR Seeker v2 (Mindstorms NXT Sensor) - Pulse IR at 38Khz Carrier and 1200 Frequency

I hate to ask a question like this, that is kinda just like "give me the code" but seriously. I've tried reading up on it everywhere, and I just don't seem to get a thing of having both a carrier ...
Henrik's user avatar
  • 103
1 vote
1 answer
2k views

Generate DC pulse after switch turned off?

I've got a power source (say 12V DC) that I'm monitoring with a relay. I want to send a pulse (over 5V DC) to another relay for 60 seconds after the first power source has been turned off. A ...
reeeky2001's user avatar
7 votes
4 answers
1k views

Time of flight difference in hardware

I have an ultrasonic emitter, and two ultrasonic receivers. When the emitter emits a pulse, the receivers get the signal at different times. I am only interested in the difference between the two ...
Randomblue's user avatar
  • 11.1k

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