| Electronics > Beginners |
| nobody talking about switching PS wasting power on input filter caps? |
| << < (14/21) > >> |
| KaneTW:
Radiolistener, are you actually just trolling? Look at the power graph in your simulations. It has positive power (= power consumed) for one half-period, and negative power (= power returned to the source) for the other. Average power is 0. The energy loss is in resistance, and you can simulate that by adding ~100 milliohms of ESR to the cap. The theoretical circuit, as shown, has zero losses. |
| radiolistener:
--- Quote from: Zero999 on August 24, 2019, 09:09:52 pm ---If the alternator, capacitor and wiring had no losses, then it would run forever, but it wouldn't be creating energy from nowhere, just storing it. If a resistive load were connected, it would slow down and stop. --- End quote --- So if you continue to apply mechanical power to AC generator, it will accumulate power and amplitude on the output will grow up just because we connected capacitor as the load? :D Do you talking about DC generator or AC? :) |
| radiolistener:
--- Quote from: KaneTW on August 24, 2019, 09:14:24 pm ---Look at the power graph in your simulations. It has positive power (= power consumed) for one half-period, and negative power (= power returned to the source) for the other. --- End quote --- Probably you didn't understand what we're talking about. I didn't said that capacitor consumes power. I said that capacitor doesn't consume power. And power graph confirms that. The discussion is not about if capacitor consumes power or not. The capacitor doesn't consume power. OK? The discussion is about whether energy was wasted or not. I mean energy which was used for work to transform mechanical energy to capacitor charge and back. As I understand all agree that there is no power loss in circuit between AC source and capacitor and all agree that AC source consumes power back. So, the question is what happens with that power next? When it is consumed by AC generator. |
| soldar:
--- Quote from: radiolistener on August 24, 2019, 09:05:58 pm --- --- Quote from: soldar on August 24, 2019, 08:44:49 pm ---In either case the problem is with you, not with the rest of the world. --- End quote --- You're said that there is no energy loss due to capacitor. --- End quote --- No. Read again carefully. I said the problem is with you, not with the capacitor. We all understand what happens and you seem to be the only one who has a problem. The problem is with you. The capacitor knows what it does, we know what it does. You are the one who is confused. maybe we need to start talking about why you are having such a hard time understanding. What kind of feelings do capacitors generate in you? Happiness? Sadness? What is your oldest memory of capacitors? How old were you? Was it a happy memory? How does it relate with the rest of your childhood? etc. Tell us your thoughts. Maybe then we can understand your problem. Or maybe not. |
| radiolistener:
--- Quote from: soldar on August 24, 2019, 09:55:50 pm ---We all understand what happens --- End quote --- If you understand what happens, then tell what happens with power when it consumed by AC generator? |
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