Hi everyone!
I have a question on differential/subtractor op amps.
So imagine a 2V AC signal with a +1V DC offset.
I want to subtract that 1V so that the AC signal is centered around 0V.
To achieve this, I want to use an op amp as a subtractor.
I read this article: https://www.electronics-tutorial.net/analog-integrated-circuits/subtractordifference-amplifier/
And attempted to follow it exactly.
The circuit I have is this:
I expect is an 2V ac wave centered at 0V oscillating between +1V and -0V as a half rectified wave since the op amp is single supply.
What I get instead is a 0V DC out.
What did I do wrong?
I have a question on differential/subtractor op amps.
So imagine a 2V AC signal with a +1V DC offset.
I want to subtract that 1V so that the AC signal is centered around 0V.
To achieve this, I want to use an op amp as a subtractor.
I read this article: https://www.electronics-tutorial.net/analog-integrated-circuits/subtractordifference-amplifier/
And attempted to follow it exactly.
The circuit I have is this:
I expect is an 2V ac wave centered at 0V oscillating between +1V and -0V as a half rectified wave since the op amp is single supply.
What I get instead is a 0V DC out.
What did I do wrong?
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