Guest scorpiuscl Posted August 19, 2013 Report Share Posted August 19, 2013 Hi guysI'm building a Power Supply that has 3 outputs:0-12V, 0.5A max-12-0V, 0.5A maxfixed 5V, 0-1AI'm having problems with the current limited part of the circuit.I was simulating the circuit here:http://freecircuitdiagram.com/2008/0...miter-circuit/but I was unable to get it to go down to 0A.Also, I need to light up a led diode when the current limiter is working, and I can't get how to do that.Is there any better current limiter design? Or should I stay with this one?Many thanks! Quote Link to comment Share on other sites More sharing options...
audioguru Posted August 21, 2013 Report Share Posted August 21, 2013 Please post the schematic you used, not a link to a page full of circuits. Quote Link to comment Share on other sites More sharing options...
Guest cts_casemod Posted September 21, 2013 Report Share Posted September 21, 2013 The LED can be triggered with an opamp, usually the same one that tells the voltage regulation loop to cut the voltage when the set current is reached.Without schematic it hard to help further. Quote Link to comment Share on other sites More sharing options...
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