Precision rectifier circuits are commonly used where the absolute value of a signal is needed, as part of a circuit measuring signal magnitude in metering applications. Countless designs exist for ...

And here it is, modelled using LTSpice. It is the same circuit as the classic simple precision rectifier (set to pass the negative half-sine), but with the non-inverting input of the op-amp connected ...

Even though we publish new blogs daily from your intrepid editor and a number of well-known writers, sometimes it's good to have a look back at our well-received articles from the recent past. Here is ...