Posted: Sun Oct 11, 2009 7:04 am Post subject: measuring current of one dc motor with CT
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 don’t 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
Best regard
Rabiei.payam
Current transformers only work on AC systems. You can use a hall effect sensor to detect the magnetic field from the motor cable.
Have a look at the Allegro current sensors - they are isolated DC sensors with parts rated for 50Amps or so. There are probably other manufacturers with similar sensors too. _________________ If all else fails, read the manual. Even better: read the manual before something fails. If you can't find it in the manual, search the forum.
BascomAVR 2.0.8.5
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