Capacitor question

114

01:21:00

Well... I just built it but I don't know what it is doing... I think the capaciors were loaded and unloaded is that right? Pls tell me more :)

published 9 years ago

drkblader12

9 years ago

!k:-)k nomp

selman

9 years ago

That is a full wave rectifier, it is used to convert AC to DC

Smates133

9 years ago

Oh thank you very much :)

justinmh

9 years ago

The capacitors are charging on each cycle of the ac thanks to the full wave bridge rectifier then when the voltage falls below a certain point they are discharging through the resistor. Then the voltage increases again and they charge and the cycle repeats. This set up is keeping the current across the resistor constant. If you were to scope it you should see it. There might be some small fluctuations but you'd never see them

justinmh

9 years ago

Also, these capacitors are in series, so it is cutting the capacity in halve... The equation for capacitors total capacitance is c total=1/c1 + 1/c2... In series. In parallel it is just c total= c1+c2... So put these in parallel or just delete one and dial up the other one. I found one at 200 micro farads(the u or Greek symbol mu is what is used for micro) it works well and the ripple of the current across the resistor is very small.

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