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about output of Current Transducer(LEM LA100P)

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mashinga

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Hello guys, I've set output of LEM between -1 V and +1V. I need to shift negative voltage to at least 0V. How can i do it? Could you give me an idea?
 

schmitt trigger

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If I understand you correctly, you want to shift a voltage swing of -1<V<+1 to 0<V<2 ?

You can use the superposition principle.
 

schmitt trigger

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What Brad is showing is exactly the superposition principle. On your bipolar waveform you superimpose a fixed DC bias
 

mtwieg

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Hello guys, I've set output of LEM between -1 V and +1V. I need to shift negative voltage to at least 0V. How can i do it? Could you give me an idea?
It has a current output, so you can do this by connecting the load resistor Rm to a positive bias voltage (like 1V) instead of to ground.
 

mashinga

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Thanks for replies guys. They are really useful.
 

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