We has recently got powermat wireless charger for iphone 4 for review, its looks like a worth device to buy in case you want to charge your iphone more quickly with the mumble jumble of the wires. As powermat wireless charger is actually a solution for those using iphone 4, as it case acts as a iphone 4 bumper so it saves your iphone from signal issue. On the other hand you can quickly charge your iphone covered in the case by just placing it on the powermat.
Many of my friends asked on what principle does powermat wireless charger for iphone and other devices works, Today we will tell you how does powermat wireless charging works. PowerMat is an exciting new wireless charging technology. It was first demonstrated in 2008 and early 2009 and is now available to buy for the home and office.
It is a small device that uses wireless charging to charge your most important gadgets like cellphones (including the iPhone and Blackberry), video games (including the Nintendo DS), and iPod without you having to connect them to a charger or plug them into the wall. The PowerMat itself is, of course, plugged into the wall and connected to mains electricity by a wire, but from then on everything is wireless. You drop your device onto the PowerMat and it gets charged wirelessly, without you having to do anything.
It works on the principle of electromagnetic induction current, This electromagnetic induction is officially defined as “the production of voltage across a conductor situated in a changing magnetic field or a conductor moving through a stationary magnetic field” but this definition is more technical. A better way to put it is that it is a means to transfer electrical power using a shared magnetic field.
Consider this arrangement
- Put electrical power into a coil of wire
- This will produce a magnetic field around the coil that affects any metal within the field (as demonstrated by Faraday)
- Change the field quickly over time and an electric current will be generated in the metal
PowerMat is charging is that it is generating rapidly changing magnetic fields above the mat; these are converted by receivers on any devices on the mat into electrical power, and so these devices get charged. The magnetic fields and electrical currents are, of course, very small and so they can work on handheld gadgets without being a health risk to humans. See the powermat pictures more closely in the picture slideshow below.
Powermat Wireless Charger Close Up Pictures
Source [ PowerMat ]