How to Build a Circuit for a Linear Hall Effect Sensor?

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Discussion Overview

The discussion revolves around building a circuit for a linear Hall effect sensor, specifically the CSLA2EL model by Honeywell, intended for measuring current. Participants seek guidance on the electrical connections and circuit design necessary for effective operation.

Discussion Character

  • Technical explanation
  • Exploratory

Main Points Raised

  • One participant requests assistance in creating a circuit for the CSLA2EL Hall effect sensor.
  • Another participant mentions difficulty in finding electrical connection information in the datasheet but provides a link to alternative datasheets that may contain relevant information.
  • A different participant shares a specific datasheet link and notes that the sensor operates with a power supply of 8-16V, outputting a voltage proportional to the current.
  • Further details are provided about the sensor's calibration related to the Gauss field and the recommendation to use a 7812 voltage regulator for a 12V DC input.
  • It is noted that the sensor outputs an AC signal for AC current input, with a specified null output offset voltage for zero current input.
  • Participants express appreciation for shared resources, including a useful PDF related to the Hall effect sensor holder assemblies.

Areas of Agreement / Disagreement

Participants share useful resources and information, but there is no consensus on a specific circuit design or methodology for connecting the sensor, leaving the discussion open-ended.

Contextual Notes

Some assumptions about the sensor's operation and specifications are mentioned, but details regarding the exact circuit configuration and potential limitations in the provided resources remain unresolved.

chudiandeyu
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Hello
I recently bought a linear Hall effect sensor for measuring current, but I don't know how to make the circuit to measure the current, could anybody help me with this? Please tell me the circuit.
By the way, I use the linear Hall effect sensor CSLA2EL by Honeywell.
Thank you very much!
 
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Wow, that's not easy...the first google link I got was labeled "datasheet" but I couldn't find any electrical connection information on it.

But I found a bunch of other datasheets here:
http://www.datasheets.org.uk/CSLA2EL-datasheet.html
and one has a pinout buried deeply in the noise. Now I forget which link I clicked and followed and interpreted, but you should be able to find it too...

It looks like they take a power supply of 8-16v and put out a voltage that is proportional to the current in the loop.
 
Last edited by a moderator:
I think this is the datasheet for the Hall effect sensor in the unit. The calibration is in terms of the Gauss field in the toroid gap.

http://sccatalog.honeywell.com/pdbdownload/images/91ss12-2.pdf

See attached pdf for some info on electrical characteristics of current sensor Hall effect holder toroid.

[added] The performance specs for the Hall effect sensor are for operating with a 12 volt dc input. I suggest using a 7812 3-pin regulator. The Hall effect sensor output is an ac output for an ac current input. The null output offset voltage for zero current input is 6 volts ± 0.6 volts. The output appears to be an npn transistor current-sourcing emitter.

Bob S
 

Attachments

Last edited:
Charlie Scott said:
This pdf (CS Series Linear Current Sensor Holder Assemblies) is really useful.
Thanx bob,
http://www.halleffectsensor.org/

This is almost a necropost spam post, but the link is actually pretty useful and on-topic for this old thread.
 

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