We can create AC from DC - the best example is House hold Inverters. We can inturn create DC from AC- Best example is mobile phone charger producing 15 v for ex. So why cant we generate Continuous AC for our house hold equipments and loop the same power needed for generating AC. Just we can loop back DC and generate AC. We have optimum power booster circuits which requires little power to run and boost the input voltage to a max level. Then we can convert to AC again. A little AC can be used to generate DC as a back loop input. So we can get a continous source of electricity for the whole house. Why cant any scientist do this? I am from electronics and comm engineer. But i cant design a machine. But why cant others? We have so many scientist in this world. WHy nobody tried it?
2007-07-19 05:10:55 · 4 answers · asked by ASH 2 in Science & Mathematics ➔ Engineering
When you convert a power source from AC/DC to DC/AC, you cannot get more power out than you put in - in fact, it will take at least some additional energy (losses) to go from one to the other.
Any scientist cannot do what you propose because it doesn't work like that. What you are asking for I think is perpetual motion.
2007-07-19 05:43:57 · answer #1 · answered by Gary H 6 · 2⤊ 0⤋
Ever take thermodynamics and learn that pesky third law. Basically it says there's no suchthing as free lunch - you can't get energy from nothing.
What you propose is the electrical analog of a perpetual motion machine - you know, a machine that runs forever using energy it generates. One of the few things the US patent office will disqualify an invention for immediately.
Think of electricity as a constant flow of energy. If I start with say a battery that has a finite amount of energy, convert that DC into AC (losslessly for now), run my house on the AC, what energy is left? How do I make more energy - I've already used up the battery.
As long as energy get consumed, you need a source of fresh energy so merely looping things around doesn't do it. Unless all you want to do is convert AC to DC and back again, without running any electrical equipment. Even then, you eventually lose energy since those conversions use up some of the energy.
2007-07-19 05:22:38 · answer #2 · answered by nyphdinmd 7 · 2⤊ 0⤋
It's been tried many times. The fault in your logic is that it doesn't take into account the power used to convert the electricity. Then there is no such thing as a perfect system. There will be power loss throughout. Also your appliances use power & drain the system as well. So there is no net gain from doing what you're suggesting.
2007-07-19 05:18:36 · answer #3 · answered by modernneanderthal 3 · 1⤊ 0⤋
Everybody invents a perpetual motion machine at the start of their engineering career. Now find out why it won't work and move on.
2007-07-19 20:30:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋