Martokan

modified 7 years ago

full bridge rectifier - help

212

04:09:14

hey guys, i wanted to ask why isnt the capacitor charging so it can make the waves smoother, instead its not doing anything, thank you for any explenation

published 7 years ago

PrathikP

6 years ago

You capacitor is changing. Just put a voltmeter across the capacitor. Oh and your diode bridge is dropping 1.5V from your supply voltage of only 3 volts. Use a High supply voltage

Martokan

6 years ago

okay thanks for your response, i was also wonderig how accurate is this app in comparison with reality

hfosteriii

6 years ago

It's pretty good but I think it uses ideal circuits more so than real life. You might not notice your caps charging and discharging because your time component of the simulation is up to fast. Slow that down and you should see it more clearly. And as PrathikP said you need to compensate for your voltage drops and check voltages across the capacitor leads. .

hfosteriii

6 years ago

I'm sorry it's not the sim speed. You can see your current charge, peak and discharge on the o-scope. I should have paid more attention lol.

Martokan

6 years ago

okay thanks :)

giomix

6 years ago

And in real life your ground refer is negative side out bridge, not AC generator.

giomix

6 years ago

Here you can see with a load http://everycircuit.com/circuit/6037648167403520

hurz

6 years ago

no giomix, "refer" is where you like to havenit. While the ground is in real at one of the mains contacts.

kilosek

6 years ago

Add to capacitor voltmeter in parallel😉

BillyT

6 years ago

All those explanations are helpful, I find that while learnind, using a transformer and grounding the negative of the diode bridge enables a bit more flexibility in viewing the charging effects, without having all those meters hanging around the circuit taking up space. This can be simpler until you can easily visualize how the circuit wholy works. http://everycircuit.com/circuit/6367681406828544

hurz

6 years ago

right Billy, all meters hanging around and the polarity they show you have to double check cuz it might swap +- terminal without any intention. Colored nodes do not do this strange flip 😉 i also avoid the meters, or if necessary cuz it must be a delta voltage some importante, then i use an opamp with gain 1 and put its output on trace, voila

giomix

6 years ago

@hurz, about refer, in real life where do you would place your tester terminals to measure in this circuit Vout? Answer, where I placed. Obvious, refer is where anyone want but "some" refer are usually used instead others in the world.

hurz

6 years ago

@giomix, you mix it up and make chaos with what you have said. Dont call it ground when you mean zero volt reference. Cause "ground" is what we have when we ground one of the mains wires deep into the GROUND. Nobody would place the "ground" to the "negative side out bridge", but the zero volt reference, or your DMM black lead! Anyway, still valid the refer can be placed where it makes most sense and this is for this circuit the rectified DC part.

giomix

6 years ago

I used "ground " terms just to indicate to Martokan the element so called by EC app. I know and agree concept you described about difference between refer and ground.

hurz

6 years ago

thats fine, if you know it. But if you know then you understand why its not good to MIX it

kiani

6 years ago

Chk. http://everycircuit.com/circuit/4758459569143808

add comment in editor