Max-Paul Posted November 12, 2013 Share Posted November 12, 2013 Even pulsing DC voltage will still show a half wave peak of 120 volts. Gee all of those meters do not prove me wrong. I believe I said that it takes a o'scope to show the pulse voltage. And if you try to build your own LED string, you best take that peak voltage in account or you will burn out your LEDs. As to why you are seeing lower voltages is cause of average. And that average is based on either two peaks (full wave) or pure (filtered) D.C. voltage. Anything else is an average. RMS is what energy would be seen if a full wave is rectified. Well looks like we both are old farts. Cut my teeth on a simson 260 without protection. Later years I worked with the 260P. I also have a Fluke 71 and 83. But anyway you slice it, a half wave is still peaking at 120 volts. Now averaging will lower the voltage seen on a meter, but not an o'scope. And if your such a electronics / electrical guy as you say you are. Then you damn well recognize what I meant by o'scope. Let me ask you this. How many white LED can you connect up in series and put them across an A.C. line plugged into a wall? I am going to send a message to Plasma with the number I have found out. Will give you a couple this way or that leeway. Lets see if you really know what you are talking about. I have my doubts. So far you have only shown me that you know the surface stuff, not the deep down stuff. Not reconizing the fact that there exsist a peak voltage in your half wave rectifying circuit can burn up things like LEDs. Link to comment Share on other sites More sharing options...
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