Hello all,
So I am messing around with a few of the pre made lM2577 regulator boards from ebay, and they are quite cool and work well. I came up with another unrelated project idea and wanted to incorporate the LM2577 onto the board instead of have a separate premade unit..
So I tried first to perf board this circuit and have had no luck. I followed the spec sheet to the T, and then tried the very slight changes in components the Ebay boards had. I have checked, rechecked, then checked again all traces and wiring, and all I get is a 2577 that gets hot. I've also tried new 2577s with no change. All leads were kept as short as possible, shorted than what was on the premade board. I even tried to remake everything, and again no luck. I am pulling my hair out. I understand it's a hard thing to answer if my circuit isn't in front of you, but if anyone has any experience with building these or other switching power supplies please give any tips.. Thanks for all the help in advance...
So I am messing around with a few of the pre made lM2577 regulator boards from ebay, and they are quite cool and work well. I came up with another unrelated project idea and wanted to incorporate the LM2577 onto the board instead of have a separate premade unit..
So I tried first to perf board this circuit and have had no luck. I followed the spec sheet to the T, and then tried the very slight changes in components the Ebay boards had. I have checked, rechecked, then checked again all traces and wiring, and all I get is a 2577 that gets hot. I've also tried new 2577s with no change. All leads were kept as short as possible, shorted than what was on the premade board. I even tried to remake everything, and again no luck. I am pulling my hair out. I understand it's a hard thing to answer if my circuit isn't in front of you, but if anyone has any experience with building these or other switching power supplies please give any tips.. Thanks for all the help in advance...