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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Okay, I cobbled together a dual 9V supply and nicked a dual supply op-amp from a previous project and it appears to have done the trick.
I'm now just trying to get rid of that offset of 0.22v. I think it's to do with that my +ve rail is 9.24v wheras -ve rail is at 9.02v. Coupling caps on the...
I have since realised that due to the op-amp being single-power supply, I need Vcc+/2 at the non-inverting input. I've built that so 4.5V now enters the non-inverting input, but now I get the attached output waveform.
I'm really not sure what is wrong here.
Alright, basically, I've built the following precision rectifier circuit but I can't discern the problem at all.
I've attached the schematic, input signal and output signal. Of course, the output should be a typical half wave rectifier but I just can't work out why the output is like that, I...
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