gaark Posted March 11, 2004 Report Share Posted March 11, 2004 sir,I need 0 to 30 V VAriable power supply design using UA 741 as the current limit and another 741 as a voltage limiter.I already have one circuit. In that the 723 provides the supply for these two 741s only. and the 10 th pin in the 723 drives the a transistor which control the output voltage. Here i used three 3055 transistors to drive the load. But in 5V-1.5A loading the transistor was very musc dissipate the heat enenthough with a heavy heat sink. Here one doubt is each transiustor is rated to 120 Watts. Quote Link to comment Share on other sites More sharing options...
MP Posted March 11, 2004 Report Share Posted March 11, 2004 gaark, if you can attach a schematic or a link to the circuit you are working on, it would be helpful to others to see what you already have in the circuit. I have noticed that the posts which get the most replies on this forum are those with an example attached. It makes commenting easier.MP Quote Link to comment Share on other sites More sharing options...
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