| Electronics > Beginners |
| 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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