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.
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How to use MOSFET in avalanche mode?
I'm thinking of a very simple circuit to generate high voltage pulses, like this:
simulate this circuit – Schematic created using CircuitLab
The MOSFET in this case will turn on until the ...
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Signal identification: What serial protocol does my desk use?
Can anybody identify what kind of signalling protocol this is?
I'm sampling at 2 MHz. Here's the first falling edge of the signal, with a default UART protocol decoder for reference (8 bits, no parity,...
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Pulse Transformer design problem: cant understand for sure whats the reason or irregular output waveform?
A ferrite core pulse transformer provided with 12V PWM signal (as primary winding input voltage) as shown in Fig-1, produces irregular output voltage across the secondary winding as shown in Fig-2. I ...
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Why do my outputs look exactly the same for the Allegro 3901?
I am trying to capture results shown in Figure 8 of Allegro 3901 data sheet .
My circuit looks like this:
The channels above coresspond to the oscilloscope screen captures below:
In the image ...
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What is the formula for maximum battery pulse vs pulse duration?
I am interested in finding the maximum current a lithium-ion battery can provide for pulses in the order of 50 ms.
If my battery can provide 50 A continuously and 120 A for 10 seconds, how can I find, ...
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Understanding inductance and its dependency with frequency
I am trying to understand how to design an inductor that has constant parameters over a wide range of frequencies. Especially over high frequencies because I want to use them for impulse testing ...
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Verifying the Measurement Precision of a Circuit
My aim is to build an electronic circuit that allows me to measure the relative precision of the energy of optical pulses in the order of 10^-6. The optical power of the laser pulses is measured with ...
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What's the cheapest way to design this circuit?
I design a board with Power over Ethernet (PoE 802.3af/at) and the standard requires a "Maintain Power Signature" (MPS) signal, which is a 10 mA, 75 ms pulse every 325 ms (roughly 25 % D.C.)....
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Routing a HV Pulse onto a PCB
I have designed a circuit to provide pulses with a slew rate of 3kV/50ns. The pulse train is made up of N successive pulses with duty cycles of 10us on 40 us off repeated at 2 Hz. My challenge is to ...
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Fast switch rise time techniques
This question is continuation of this question: High Frequency Square Wave Generator
I am trying to drive a 400V supply and 50ohm load with an RF MOSFET which has a rise time of 3-4 ns and fall time ...
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Pulse skip modulation vs Phase cutting for AC inductive loads?
What is preferred and safe mode for controlling power to an Inductive AC load when driven by a Triac?
I am using a microcontroller with zero crossing optocoupler to drive the control signal and the ...
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High Frequency Pulse Rate Generator - Science Fair
( For our High School Science Fair) I am trying to find a pulse rate generator capable of producing 2.5Hz - 20,000 Hz utilize with over 10,000 LEDs all at once with several milliseconds in between ...
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How to make pulse wave from sine wave - audio frequency
I'm looking for a quick-and-dirty way of converting something close to a sine wave to a narrow pulse wave. Please see the image: a low bass note played through a broken transformer. I'm trying to re-...
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Confusion in pulse transformer specification
I am having hard time to understand specification of this particular datasheet. https://www.mouser.ca/datasheet/2/54/hctsm8-3217781.pdf
I am using HCTSM80101AAL. My first question is about volt-...
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Chirp pulse compression as described in Stimson's book
I reference the below diagram, from Stimson's Airborne Radar, 2nd Ed. In the text he discusses how the frequency increases linearly throughout the duration of tau. The sketch of the frequency x time ...
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