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Forum Index : Electronics : Hall Effect Current Sensor

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BjBlaster
Regular Member

Joined: 04/04/2008
Location: Australia
Posts: 55
Posted: 02:50pm 28 Mar 2009
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Does anyone know of a supplier in WA or just Australia for the allegro sensors?

http://www.allegromicro.com/en/Products/Part_Numbers/0755/in dex.asp

Cheers

BjEdited by BjBlaster 2009-03-30
Check out my projects here in:
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GWatPE

Senior Member

Joined: 01/09/2006
Location: Australia
Posts: 2127
Posted: 12:29am 29 Mar 2009
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You could try Farnell, or similar parts supplier.
become more energy aware
 
BjBlaster
Regular Member

Joined: 04/04/2008
Location: Australia
Posts: 55
Posted: 01:17pm 29 Mar 2009
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I tried them, no luck. What are you guys using for current sensing that is available in oz?
Check out my projects here in:
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GWatPE

Senior Member

Joined: 01/09/2006
Location: Australia
Posts: 2127
Posted: 04:44pm 29 Mar 2009
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Depending on the application you can use resistive shunts and just amplify the signals. I made a 4 channel unit for my 4 channel logger. the shunts are short lengths of PCB track, with a common ground for the amplifier and the ADC. If you need electrical isolation, then things become more complicated. I have used the Alegro on a micro direct on my windmill picaxe controlled boost maximiser [now currently obsolete]

Gordon.

PS edit: I think PhillM sourced Alegro units in OZ.Edited by GWatPE 2009-03-31
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BjBlaster
Regular Member

Joined: 04/04/2008
Location: Australia
Posts: 55
Posted: 01:16am 30 Mar 2009
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Sorry, I was spelling it like you just did! Allegro works much better in the Farnell search engine instead of Alegro

Anyway $15 for 50A isolated +5V output sensor is great. I am using to measure the DC 90V solar current of my new grid fed solar system so it needs to be isolated.

For isolated voltage measurement I'm using the LOC110 linear opto.Edited by BjBlaster 2009-03-31
Check out my projects here in:
Bj's Shed
 
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