DC Servo Amplifier

210

02:17:14

***Sorry for my poor English language***

this circuit use for eliminate dc offset

In this exsample I've set 2V offset in 5Vpp ac signal (in the real world the offset voltage is just a few millivolt )

R 500 ohm assume to source impedance

R 3K5 to balance offset

C 200nF connected in negative feedback to block DC current that set the OpAmp to sink DC offset from input

R 800 ohm to pulldown capacitor current

R 10K  assume to load

hope you enjoy ; )

published 9 years ago

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