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287 views

Need to understand the current sensor connection in this circuit

I'm working on creating a smart power meter for my home, and I found this tutorial. I want to understand each part of the circuit, and the tutorial covers everything. However, it doesn't explain why ...
M-125's user avatar
  • 53
2 votes
3 answers
395 views

Designing Eddy Current Sensor?

I am looking to build a eddy current sensor, I am having difficulty finding information on how I should be designing the sensor to fit my needs. There's a few studies and articles I've found that ...
Mark's user avatar
  • 23
2 votes
1 answer
265 views

LEM current transducer 2.5 V internal reference

I am testing a LEM LTSR-25-NP current transducer. According to the datasheet, the current transducer should be outputting 2.5 V +/- 0.025 V when the input current is 0 A, but this is not what I am ...
Luis's user avatar
  • 41
2 votes
3 answers
341 views

How can we say this current sensor doesn't measure DC?

Digikey is saying this current sensor "CS0305B" from CUI Devices can measure AC and not DC. But in datasheet there is no reference or note mentioning this current sensor will not measure DC. ...
Karthick selva's user avatar
1 vote
2 answers
568 views

What does sensitivity mean for a current sensor when given in "mV/N" or "mV/mT" rather than "mV/A"?

I have been analyzing various datasheets of current sensors and majorly getting sensitivity given in "mV/A," from which I understand the output voltage per 1 ampere. I do not understand it ...
Karthick selva's user avatar
0 votes
1 answer
304 views

Most accurate way to measure universal (AC) motor current?

I'm designing a control circuit for a universal (AC) motor (single phase, brushed). I've simulated the control circuit and it works as expected. Circuit below is controlled by a STM32G4 series ...
David's user avatar
  • 28
0 votes
1 answer
89 views

Measuring high currents with toroids

I got a PT27312 current sensor (datasheet), I wonder if I can use it to measure currents up to 100A AC/DC. I couldn't find any specifications in respect of the current measurement range. I only know ...
Electroprime70's user avatar
0 votes
2 answers
181 views

Real Time AC Current Sensing [closed]

I'm trying to analyse the harmonics present in different household devices's current waveforms. For this, I need a CT based current sensor which can sample data quite accurately and quickly (around 5% ...
Aditya Madhusudhan's user avatar