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Current Sensors
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Topic: Current Sensors (Read 3811 times)
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silo_xtreme
Robot Overlord
Posts: 173
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I really love robots, they keep me awake at night.
Current Sensors
«
on:
July 12, 2007, 07:37:27 AM »
Hello great bot lords :-) I was wondering - do you know of a current sense IC that can detect currents 30 A; or can only those "hall effect" current sensors get there? I would perfer to find an IC because the hall effect sensors have that big copper core in the middile - this means more $$.
Any ideas?
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Admin
Administrator
Supreme Robot
Posts: 11,703
Helpful? 173
Re: Current Sensors
«
Reply #1 on:
July 12, 2007, 08:53:59 AM »
Digikey only has them going up to 7A . . .
You can always run a few in parallel, and in post processing multiply the output by the number you have in parallel.
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silo_xtreme
Robot Overlord
Posts: 173
Helpful? 0
I really love robots, they keep me awake at night.
Re: Current Sensors
«
Reply #2 on:
July 12, 2007, 09:11:57 AM »
Ok, that would work.... but it end up costing more $$ in the end. Looks like i'm going with the hall effect. Thank you!
Btw, I love your site - thank you for this wonderful resource.
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Kohanbash
Supreme Robot
Posts: 430
Helpful? 1
Re: Current Sensors
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Reply #3 on:
July 12, 2007, 11:37:27 AM »
Hi there is an NT-XX series of current sensors. They are available in 5,15,25, and 50 amp IC's.
http://www.newark.com/jsp/level5/module.jsp?moduleId=en_US/3586.xml
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Admin
Administrator
Supreme Robot
Posts: 11,703
Helpful? 173
Re: Current Sensors
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Reply #4 on:
July 12, 2007, 12:31:24 PM »
sdk32285, their cheapest one is $25, almost 3x the hall effect option . . .
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Kohanbash
Supreme Robot
Posts: 430
Helpful? 1
Re: Current Sensors
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Reply #5 on:
July 12, 2007, 01:09:37 PM »
Heres an even cheaper option.
http://www.allegromicro.com/en/Products/Part_Numbers/0712/index.asp
request a sample.
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silo_xtreme
Robot Overlord
Posts: 173
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I really love robots, they keep me awake at night.
Re: Current Sensors
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Reply #6 on:
July 12, 2007, 01:29:25 PM »
Any idea what the max current that can handle? I can't seem to find that data, andn wouldn't want to burn it out.
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Kohanbash
Supreme Robot
Posts: 430
Helpful? 1
Re: Current Sensors
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Reply #7 on:
July 12, 2007, 01:40:53 PM »
+/- 5 - 30A
http://www.allegromicro.com/en/Products/Categories/Sensors/currentsensor.asp
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Current Sensors
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