Members boseengineer Posted February 2, 2009 Members Share Posted February 2, 2009 Close but not exactly right. Power is voltage (measured in Volts) mutliplied by current (measured in Amperes). Unit of power is 1 Watt = 1 Volt * 1 Ampere. If no load is connected, the current is 0 Ampere and hence the power that's delivered by the amp is 0 Watts, regardless of the output voltage. However, the power "disspation" is not 0. Even with no load the amp will still draw some power from the wall and turn it into heat. It's impossible to build an amp that's 100% efficient and lossless. Link to comment Share on other sites More sharing options...
Members Renfield Posted February 2, 2009 Members Share Posted February 2, 2009 If I find myself with no load, it's a good indication that I wasted an entire day on the internet. C7 When I've been on the internet and end up with no load, I know the internet has not let me down again. Link to comment Share on other sites More sharing options...
Members L. Ron Hoover Posted February 2, 2009 Author Members Share Posted February 2, 2009 Like, I said earlier, I know fully well that "no load" refers to an open circuit and that the load increases as the load impedance decreases. I was just wondering if anyone else who knew anything about electronics had ever heard of "no load" referring to a short. The maximum no-load voltage of a power amp isn't of particular importance to the end user, but it's quite important to me as a designer. You have to know that to know how much the amp's output voltage sags under load and to determine the no-load losses and efficiency of the amp. Link to comment Share on other sites More sharing options...
Members L. Ron Hoover Posted February 2, 2009 Author Members Share Posted February 2, 2009 When I've been on the internet and end up with no load, I know the internet has not let me down again. Link to comment Share on other sites More sharing options...
Moderators Kindness Posted February 2, 2009 Moderators Share Posted February 2, 2009 You have to know that to know how much the amp's output voltage sags under load and to determine the no-load losses and efficiency of the amp.One of my guesses was right! Link to comment Share on other sites More sharing options...
Members Frycook Posted February 2, 2009 Members Share Posted February 2, 2009 So it isn't in respect to a plate voltage with a steady zeroed grid? meaning no load available? I really thought the gurus would chime in but maybe I am way out in zombieland? Link to comment Share on other sites More sharing options...
Members Crescent Seven Posted February 2, 2009 Members Share Posted February 2, 2009 When I've been on the internet and end up with no load, I know the internet has not let me down again. Has it ever? If you can't find something on the internet that excites you, it's time to reconsider your kinks.C7 Link to comment Share on other sites More sharing options...
Members Renfield Posted February 2, 2009 Members Share Posted February 2, 2009 Has it ever? If you can't find something on the internet that excites you, it's time to reconsider your kinks. C7 Or move to a country with looser laws. Link to comment Share on other sites More sharing options...
Members ChrisAlbertson Posted February 2, 2009 Members Share Posted February 2, 2009 Let me rephrase a little:What does the general term "no load" mean to you with respect to electrical circuits?Does it refer to an open circuit or a short circuit? Technically a "load" is an electrical resistance placed across a voltage source. "no load" means an open circuit. This describes it betterhttp://en.wikipedia.org/wiki/Electrical_load Link to comment Share on other sites More sharing options...
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