WeaSiL Posted May 17, 2006 Report Share Posted May 17, 2006 I need to build a 60~65VDC 10A Power supply to run one of the servo motors for my CNC Mill. I will be using the 182U30 Transformer from this page http://www.hammondmfg.com/182.htm. What is the most cost effective way to drop the voltage from the rectified ~80VDC down to 60 or 65VDC ? I have considered a high voltage switching regulator but would like to keep the parts count (and cost) down if possible.Any ideas.Thanks,WeaSiLP.S. I just found these forums and hope to be here quite a bit more in the future. Quote Link to comment Share on other sites More sharing options...
WeaSiL Posted May 22, 2006 Author Report Share Posted May 22, 2006 After some more research I was able to find and purchase some TL783 High Voltage regulators. These appear to be exactly what I need for the initial regulation and have the same general use as an LM317 type regulator. My question now is how do I take the output of that regulator and have a transistorised output capable of 10A? I have been able to build the supply with a much lower current but equal voltage with another transformer and when I load the supply down the voltage drop across the load increases to ~77VDC. What type of transformers can I use that are capable of the required output and how can I use the output of the regulators to determine their voltage? Quote Link to comment Share on other sites More sharing options...
Enac Posted May 22, 2006 Report Share Posted May 22, 2006 Is there some reason you can't use a switching regulator? A 10 amp linear regulator is bulky, expensive, and hot! Quote Link to comment Share on other sites More sharing options...
WeaSiL Posted May 22, 2006 Author Report Share Posted May 22, 2006 There is no reason I can't use a switching regulator. I just have no experience with them at all. Suggestions and design ideas would be greatly appreciated though and I will certainly evaluate all my possibilities.What type of switching regulator and how do I implement it?Thanks,WeaSiL Quote Link to comment Share on other sites More sharing options...
WeaSiL Posted May 26, 2006 Author Report Share Posted May 26, 2006 Is there noone who can tell me what kind of transistors I can use to amplify the current from the regulator?Thanks,WeaSiL Quote Link to comment Share on other sites More sharing options...
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