adsl1981 Posted February 7, 2006 Share Posted February 7, 2006 Hello, Im wondering if there is anyway of making a wireless power supply IE transmiting power without cables ? im doing it for a littele experiment. Thanks you guys for all my help on the other question aswell ! Link to comment Share on other sites More sharing options...
Klaynos Posted February 7, 2006 Share Posted February 7, 2006 Batteries. Link to comment Share on other sites More sharing options...
adsl1981 Posted February 7, 2006 Author Share Posted February 7, 2006 Hi, Well im looking for a more powerful way basically i want it to be 240V just a a power supply without the cable can it be done ? Thanks Link to comment Share on other sites More sharing options...
insane_alien Posted February 7, 2006 Share Posted February 7, 2006 big batteries/solar panel + an altenator to give you 50Hz if you mean "beams" of energy then no, such a device does not exist as of yet. Link to comment Share on other sites More sharing options...
NMajik Posted February 7, 2006 Share Posted February 7, 2006 Although I don't know what you are doing, I'm going to guess the tesla coil approach (transformed down on the the recieving end to 240v) won't work? Link to comment Share on other sites More sharing options...
5614 Posted February 8, 2006 Share Posted February 8, 2006 You could put loadsa of smaller power sources together (as I_A said). As for "beams" well that does kinda exist as far as light "beams" from the sun and then using a solar panel to convert that into electrical energy, however you will get 240V out of those unless you had a lot and a lot of solar panels on a very bright day! Or NMajik idea of making a spark cover the distance, not so practical as the spark could jump, a high voltage is needed before hand (although 240V through transformers would do) and obviously it wouldn't cover very long distances and there could be nothing but air between transmitter and receiver. Link to comment Share on other sites More sharing options...
padren Posted February 9, 2006 Share Posted February 9, 2006 I don't know if this is the sort of thing one could (or should) consider in a "little experiment" but for what its worth: http://en.wikipedia.org/wiki/Microwave_power_transmission http://en.wikipedia.org/wiki/Wireless_energy_transfer Link to comment Share on other sites More sharing options...
Klaynos Posted February 9, 2006 Share Posted February 9, 2006 Combustan engine powered generator... Link to comment Share on other sites More sharing options...
taylrl Posted February 13, 2006 Share Posted February 13, 2006 could you not get an incerdibly powerful magnet to induce a current in a coil from some distance?? Link to comment Share on other sites More sharing options...
5614 Posted February 13, 2006 Share Posted February 13, 2006 Theoertically yes you could. Link to comment Share on other sites More sharing options...
NMajik Posted February 13, 2006 Share Posted February 13, 2006 could you not get an incerdibly powerful magnet to induce a current in a coil from some distance?? Wouldn't you have to rotate either the coil or the magnet? Or am I completely wrong? Link to comment Share on other sites More sharing options...
gcol Posted February 13, 2006 Share Posted February 13, 2006 Two methods of cable-less power transmission being considered for future use are; induction (already used in small-scale use), And high energy microwave, where the example quoted was a solar power collecting satellite beaming the enegy to earth as microwaves. Link to comment Share on other sites More sharing options...
5614 Posted February 13, 2006 Share Posted February 13, 2006 Wouldn't you have to rotate either the coil or the magnet? Or am I completely wrong?Yeah that's true. One needs to be moving with respect to the other. Link to comment Share on other sites More sharing options...
gcol Posted February 14, 2006 Share Posted February 14, 2006 If the magnetic flux of the source was oscillating, then neither source nor drain would need to physically move. Static induction. Link to comment Share on other sites More sharing options...
YT2095 Posted February 14, 2006 Share Posted February 14, 2006 Induction has been used for years as a way to "transmit" power, think of electric toothbrushes, a perfectly sealed unit with a base you drop it into, no wires or conectors involved there, or the rf ID tags. Link to comment Share on other sites More sharing options...
gcol Posted February 14, 2006 Share Posted February 14, 2006 So the only practical solution appears ro either lugging batteries around, or converting electrical energy into radiated energy, but dont stand in the way of the radiation, or you will fry your family jewels. Conversion efficiency, concentration and directional control would be the problems. Not exactly a little home science experiment. If it were easy, the power transmission companies would have it sewn up already. Link to comment Share on other sites More sharing options...
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