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Op Amp Full Wave rectifier with Hi Pass question

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alexg:
Thank you, placed an order at Digikey and will test as soon as it arrives later this week.

JacobPilsen:
This is best known precision rectifier:

5 Resistors, 2 diodes, 2 OpAmp, nothing less.
http://www.eeeguide.com/precision-full-wave-rectifiers/
https://www.allaboutcircuits.com/worksheets/precise-diode-circuits/

Did you Search for "precision rectifier" here on Forum ???

alexg:

--- Quote from: JacobPilsen on July 23, 2018, 06:04:29 pm ---This is best known precision rectifier:

5 Resistors, 2 diodes, 2 OpAmp, nothing less.
http://www.eeeguide.com/precision-full-wave-rectifiers/
https://www.allaboutcircuits.com/worksheets/precise-diode-circuits/

Did you Search for "precision rectifier" here on Forum ???

--- End quote ---

Will this rectifier work with single supply?

JacobPilsen:
Sorry, i was unfortunately overlooked, that single supply is demanded.

If you change your mind, I would recomend using voltage inverter, not an artificial ground.

--- Quote from: alexg on July 22, 2018, 10:00:05 pm ---however positive half of the wave has voltage drop somehow
--- End quote ---
One half of the wave is amplified by first stage, while second half of the wave has voltage drop across the second resistor.

alexg:

--- Quote from: oPossum on July 23, 2018, 03:14:09 am ---Schottky diodes have high reverse leakage. Try a silicon diode like 1N4148 or 1N914 instead.

--- End quote ---
Worked like a charm, thank you.

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