Linear Detector for AM Demodulation
We can simply a rectifier using a linear detector. It’s not only have no gain, but also no distortion. An example from two op-amps is the easy one as shown in the following circuit diagram. The second op-amp is a precision half-wave rectifier (the second diode is to “catch” the op-amp on the other half-cycle and prevent it from saturating). […]
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