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Help me with fb100p current transducer from LEM

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ZeleC

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Current transducer

hello out there
i would like to read high current to my uC
im trying to use a fb100p current transducer from LEM but its not working
anybody got application notes on that one , or does any body have another idea or would suggest another current transducer
thx in advance
 

Hi ZeleC,


I'm using AC1020 from Talema. In my solution I put 100ohm resistor in paralel to the secondary coil to get an 3Vpp sine wave. Next with the ADC of the uC I make samples each ms, to get the peak value, next is only calculus.

I experienced some linearity problems due the 10k impedance of the ADC.

Hope Helps

NeuralC
 

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