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Roy Lewallen wrote:
Your problem here, and I suspect elsewhere, is that you've embraced the idea that there are waves of flowing and reflecting power. Roy, your problem is that you have embraced the idea that reflected waves contain zero energy such that zero reflected energy can be measured as zero reflected power passing a measurement point. However, zero energy waves are impossible!!! 2. Realize that the flowing-power concept is flawed and abandon it. Why don't you realize that reflected waves of zero energy are impossible? Can you explain this? There is no requirement that the source be set to zero in determining or using the Thevenin equivalent resistance. It is a requirement of the superposition principle that the source voltage be set to zero for determining the voltage and current due only to the reflected wave. I'm surprised you are trying to sweep that fact under the rug. My analysis did not contain a Thevenin equivalent to any circuit. It contained only an ideal voltage source. An ideal voltage source plus a series resistor *IS* a Thevenin equivalent circuit. Nice try at obfuscation. You're building a logical argument from a flawed premise. Nobody's premise is more flawed than yours. You are only performing 1/2 of the pre-superposition phase. Everything can be explained if you actually go through with the superposition of which you are so afraid. -- 73, Cecil http://www.w5dxp.com |
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