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4hv.org :: Forums :: General Science and Electronics
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Calculations for Capacitor Charging

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scuba14c
Sat Mar 04 2006, 09:25PM Print
scuba14c Registered Member #236 Joined: Wed Feb 22 2006, 09:59PM
Location:
Posts: 13
I need to know how long it will take to charge a capacitor, but can't find the equations. Does anyone know these offhand?

[Mod edit: thread given more descriptive title]
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WaveRider
Sat Mar 04 2006, 09:31PM
WaveRider Registered Member #29 Joined: Fri Feb 03 2006, 09:00AM
Location: Hasselt, Belgium
Posts: 500
What kind of circuit are you using to charge the cap?
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Bjørn
Sat Mar 04 2006, 11:00PM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
http://wiki.4hv.org/index.php/Capacitor
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IamSmooth
Sun Mar 05 2006, 03:23AM
IamSmooth Registered Member #190 Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
You beat me to posting an equation.

I have a question along this thread: if one is using a rectified sine wave for charging, is it the RMS or average current one should use for the calculations? I understand that when comparing DC to AC the RMS is used because the power transfer is equal; is it the same for capacitor charging, too?
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scuba14c
Mon Mar 06 2006, 08:24PM
scuba14c Registered Member #236 Joined: Wed Feb 22 2006, 09:59PM
Location:
Posts: 13
Thanks, these were the equations I need.
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