Timeline for What does the RMS value of a DC current waveform represent?
Current License: CC BY-SA 4.0
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| Apr 20, 2023 at 2:15 | comment | added | Spehro 'speff' Pefhany | @PeterCordes Yes, of course, and that's the way I would calculate it, but I wanted to apply the sqrt(D) formula the OP has. | |
| Apr 20, 2023 at 1:08 | comment | added | Peter Cordes |
True in this case (resistive load), so V and I have the same shape. Not necessarily true in general if the load involved some L or C components as well as resistors. That might be a good test for whether a certain way of thinking about the problem is useful. (I think Andy Aka's answer is the most intuitive: power is applied 75% of the time, and when it's on it's Vpk * Ipk.)
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| Apr 19, 2023 at 1:04 | history | answered | Spehro 'speff' Pefhany | CC BY-SA 4.0 |