katsar
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Hello
I am using a current transducer for measure current from a pc. The pc's current is a about 0,5 A. So I use a current to voltage converter with op amp to turn current into voltage. But my controller needs only positive signals so I have to add a dc offset to my signal. I have the circuit which uses a cap and two equal resistors but the output of that circuit is different from the original signal. The frequency is from 50 hz to 200 hz. So the solution is to use a summer with op amp. But I don't know how to build it. Can you help me? Can you show me how to do it? I had many failures trying to make it work but nothing. Thank you
I am using a current transducer for measure current from a pc. The pc's current is a about 0,5 A. So I use a current to voltage converter with op amp to turn current into voltage. But my controller needs only positive signals so I have to add a dc offset to my signal. I have the circuit which uses a cap and two equal resistors but the output of that circuit is different from the original signal. The frequency is from 50 hz to 200 hz. So the solution is to use a summer with op amp. But I don't know how to build it. Can you help me? Can you show me how to do it? I had many failures trying to make it work but nothing. Thank you