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Hero999 said:You can store AC power, but not for very long, if you connect a parallel resonant capacitor and inductor an AC power supply then disconnect it, the AC voltage will be stored for a short time before dieing away.
Gaston said:i supose you could charge one battery with the positive half of the cycle and another with the negative half. then just use transistors in a push pull configuration and output a sine wave with a signal generator. and as far as computer ups's are concerned. wouldnt it be simpler to just store the 12, 5 and what is it 3.3 volts seperatly and just feed the voltage dirctly to the computer during a power outage?
Gaston said:i'm not saying its better, i was just talking hypotheticaly that it could be done that way. as for the ups. the only part that doesn't make sense to me is to convert from ac to dc. then from dc to ac, then fron ac to dc again. just seems like it should be from ac to dc one time
Gaston said:what i am sugesting with the ups is. to convert it to dc one time and have the power supply able to run the computer and charge the battery or batteries at the same time basicaly in parallel with the devices in the computer. when the ac power goes off there will be power from the battery ready to go.
In practice it wouldn't last for ever because there will be losses in the form of electromagnetic radiation.evendude said:I believe I once read an article about using superconductors to make a resonant tank circuit which could store energy much more efficiently - though you had to keep it immersed in liquid nitrogen or something to make it superconducting...
Well the losses will be lower at a lower frequency.Second, why would storing energy at 1Hz be easier than storing it at 50Hz?