Questions tagged [noise]
Noise is an unwanted disturbance in an electrical signal. This tag is for questions about sources of noise, noise types, issues caused by electrical noise, or improving the signal-to-noise ratio of an analog circuit.
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Servo moving to limits randomly
I've seen a very similar question to this but want some extra pair of eyes on my circuit here.
The issue I've encountered is on startup of this script every so often the servos will randomly move to ...
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Is the x-capacitor essential in the circuit below?
hi
I hear a buzzing noise from c1 and L1 in this circuit
C1 used a film capacitor, not an X capacitor
(Film capacitors were used instead of x capacitors because of internal space problems.)
I thought ...
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10 µF and 0.1 µF capacitors not making any difference in filtering out noise
I have two circuits (green and brown) featuring a load cell, HX711, and ESP32-C3:
The HX711 and ESP32-C3 go on top of those round female pin header.
The only difference between them is that one is ...
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What should I make of this spectrum analyzer data?
Here I have two signals that I placed into a spectrum analyzer. Channel 1 (yellow) comes from an avalanche photodiode + TIA circuit that has a 50 Ω output resistor, which is directly connected via BNC ...
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Calculating noise of two resistors in series when one of the resistors has a significant flicker noise component
Two resistors are in series like a voltage divider.
One resistor is a very large Vishay TNPW series with no excess noise. Excess noise is defined as noise in excess of the thermal noise due to current ...
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Digital-to-analog-converter PCB: Ground plane cut or not?
I'm designing a DAC board and I'm not sure what would be the best thing to do regarding grounding, to minimize noise.
This is the approximate layout I have so far, with the system ground point (also ...
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Caps vs. no caps = the same noise?
This is a setup with an ESP32-C3 and HX711.
In this oscilloscope reading, there is a 10 μF cap and a 0.1 μF cap across the VCC and GND of the HX711 (it makes the load cell readings more stable).
In ...
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Voltage unexpected noise
I'm quite new to the electronic designs so might have made some horrible mistakes in the below circuit. It works as expected but it has a problem.
The voltage at the output has some sort of noise ...
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Custom PCB to make a high-precision, low-current voltage source "fix" drift in a lower-precision, high-current current source
I have the following goal, which I presented in a previous question:
I'm trying to generate a current source which is extremely low drift
but can maintain high current (3A into a few ohms), that ...
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Does LISN eliminate differential mode noise?
Do I understand correctly that this LISN circuit doesn't eliminate differential mode noise? And when I get a spectrum, there are two parts of noise: differential mode (DM) and common mode (CM)?
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Sprinkler controller couples electrical noise between stations, firing wrong solenoid
I've been trying to troubleshoot a Toro DDCWP 4 battery-powered sprinkler controller which started exhibiting strange behavior this summer. This is a basic four-station controller paired with RainBrid ...
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'Strange' behaviour due to DC motor
TLD: How do I minimise noise / electrical disruptions created by a DC motor?
Situation
I would like to control a DC motor through DMX512. Therefore I connected a Max485 chip to an Arduino to receive ...
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Filter for supply voltage of amplifiers
I need to design an ultra low noise amplifier in transimpedance architecture. This is the architecture I have chosen:
In addition to the decoupling capacitors on the supply pin I have also added two ...
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Issues with Audio Amplifier Circuit - No Output Signal with Capacitor, noise
I'm having trouble with an audio amplifier circuit that I designed, and I hope someone can help me figure out what's wrong.
Here's the schematic of my circuit:
Rsig is a variable resistor
The circuit ...
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Persistent ripple at the buck converter output
I developed a half-bridge buck converter, I did all the steps, from the converter calculations, such as accommodating the copper in the appropriate ferrite core, wire gauge diameter, etc., my project ...
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