Capacitor as current limiter

Discussion in 'General Electronics Chat' started by xodbox, May 31, 2012.

Thread Status:
Not open for further replies.
  1. xodbox

    Thread Starter New Member

    May 31, 2012
    1
    0
    Hi,

    I want to limit the current through a resistor using a capacitor in series with the resistor. The resistor has 16ohm, and it will be connected to 127V AC. I will be using a 55uF capacitor, so the current through the circuit will be 2.5A. The circuit must work 24/7. Does anybody know if there is an issue with this setup?

    Thanks
     
  2. baby_1

    Member

    Jun 3, 2011
    39
    0
    Hello
    as you tell us the current is alternative and I(RMS)=2.5?
    if you use a resistor with 16ohm value the Power dissipation=R*I^2=16*2.5*2.5=100W
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    We do not support discussions on transformer-less power supplies, as they are inherently unsafe.

    You must use a transformer to provide galvanic isolation from mains power.

    The price of a transformer is a bargain compared to the cost of a funeral. Please do not attempt your idea.

    Excerpt from the ToS:
     
    Last edited by a moderator: May 31, 2012
Loading...
Thread Status:
Not open for further replies.