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measuring current of one dc motor with CT

 
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payam

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Joined: 15 Nov 2005
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PostPosted: Sat Oct 10, 2009 12:44 pm    Post subject: measuring current of one dc motor with CT Reply with quote

Hello every one
I want to use CT for measuring current of one dc motor(a bout 0 ~30 A-12 or 24 VDC) and at last sensing it with ADC(I donít want measure it exactly I want sense over load current ,continues current ,no load current and whit out current from each other ) please recommend me one circuit a bout my problem
Tank you
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Rabiei.payam
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AdrianJ

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Joined: 16 Jan 2006
Posts: 2473
Location: Queensland

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PostPosted: Mon Oct 12, 2009 3:08 am    Post subject: Reply with quote

If you mean a Current Transformer by CT, then you have to realise that a CT only works for AC current, not DC.
But of course you can use other devices, from a series resistor to Hall current sensors, to measure DC current.

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Adrian Jansen
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