Ac to cc

  • Thread starter borisgazza
  • Start date
  • #1

Main Question or Discussion Point

I have a device that generate a pulsating current(2s 2A,2s 0A),
and i would like to convert it to a continuous dc current.
i have no idea of how to do it.

Thanks for your help.
 

Answers and Replies

  • #2
1,482
3
just have to hook up a bank of capacitors
 
  • #3
berkeman
Mentor
56,646
6,543
... or maybe use a battery...
 
  • #4
vk6kro
Science Advisor
4,081
40
Take the output through a diode to a large capacitor. Large enough so that the capacitor does not discharge significantly when it is not being charged via the diode.

For small currents and voltages, maybe a 5000 uF 25 volt capacitor and a 1 amp 400 volt diode.

The diode is there so that the capacitor cannot discharge back into the power source when it is not supplying power.
 
  • #5
8
0
if you need a steady dc signal then put a capacitor across the positive and negative, then run it through a voltage regulator. if you want to be able to vary the voltage then you could try an lm317, I believe you can draw 1 or two amps from it. If you want 12 volts lm7812 and for 5 volts lm7805. You can input any voltage into the voltage regulator (within reason), as long as its about a volt higher than what you want out.
 

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