-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Tuesday 2008-02-19 at 07:17 -0500, James Knott wrote:
Aaron Kulkis wrote:
What it can't handle is 5-W RMS.
And what, precisely, is 5W RMS? If all you need is average power, then simply take the average of all the instantaneous power levels. There's no need for RMS. With RMS voltage or current, you're taking instantaneous values, converting them to power, taking the mean and converting back to equivalent DC voltage or current.
RMS is just a formula, you can apply it to any waveform. However, applied to power doesn't make sense, because the square is always positive, and power in a non resistive circuit will be both positive and negative at times, reducing the "really" used power even to zero. Thus RMS power makes no sense, although it is calculable. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) iD8DBQFHutSytTMYHG2NR9URAnYRAJ0V2Lli4dKq+/VcXFlRAFmCLcrAMQCgiJmR YohkyJXpufUohin9yDlb4ps= =cSbk -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org