During the first decade of XXI century the rapid spread of portable devices has led to a huge number of our everyday portable devices for various purposes. Now many of us have got such portable devices like mobile phone, laptop, player, digital camera, digital photo frame, and their number increases further. In recent years, brewing is a clear tendency to address the problem of unification of devices charge so that one memory can be used to charge various types and models of portable equipment from multiple vendors. This problem was solved in different ways: to create different versions with chargers set of connectors and the ability to choose a power supply, for example for different models of mobile phones. Portable electronics can be recharged, for example, using a standard mini-USB connector. Nevertheless, all these ways, despite the decision, in one degree or another, unification problem of the charging process), there are significant disadvantages. The brilliant experimental physicist Nikola Tesla, a hundred years ago stavivschy experiments and studies with using electric currents, was able to get very interesting and promising results, has created a unique engineering electrical installation. One of the problems whose solution is sought Tesla, a power transmission electric current at a distance without wires.
Put them at the time and technical experiments confirm this method of transmission. Fifty years ago, digital electronics, and there was an incredible amount of portable devices of various types and purposes, and with it the question arose again the need to develop suitable methods for their wireless dozaryadki. So how do today's designers want to solve the problem wire-free charging portable electronics? I must say that the first real development has brought to the final product and demonstrated distinguished public during the exhibition in 2009 in Las Vegas. These devices are designed by Powermat from Israel and the American Fulton Innovation. The effect of these chargers is the use of coils: the primary is in the charger connected to the electrical network, the second – in the refillable gadget. The primary coil generates an alternating magnetic field and it induces in the coil of a nearby unit rechargeable electric current that ensures it is charged.
Options for implementing such a method charge without wires may be different. For example, the primary coil can be embedded in the carpet, on which is laid-loading device and the second coil can be both external and embedded in the gadget (Mobile phone, PDA, Smartphone, etc.). In the future, the primary coil can be embedded in various objects at all (in the desktop to the other furniture in the wall), providing wireless charging of portable equipment in any point in your apartment. Unfold truly fantastic prospects for wireless charging and even simultaneous transmission of useful signals through such devices. Therefore, there is no need to multiple outlets. And when something like power chargers will make it possible to operate without a mains connection and more energy devices – laptops, lamps, and remote controls household appliances. One of the highlights: the efficiency of chargers based on the principle of wireless communication is more than 90%, and the conventional reel stands, the figure is fifty to sixty percent. Designers promise of such devices, the first such devices go on sale later this year for quite a reasonable price in a few tens of dollars. To speed the arrival of this technology to consumers and lower prices to solve the problems of standardization, interoperability and unification of wireless chargers, and this will engage an international organization Wireless Power Consortium, founded in 2008.