To realize wireless charging of mobile phones and other products, there must be two parts: the transmitter, which is connected with the power supply and is responsible for emitting electric energy to a vast space; Receivers are usually installed on electronic products to receive electric energy. Wireless charging technology has been used in mobile phone products. Take iPhone as an example, in order to make it have wireless charging function, wireless charging manufacturers modified it and installed a kind of "clothes" similar to "apple skin". As a wireless charging receiver, it appears in the form of adding a mobile phone charging sleeve, but it may launch a related transformation product China. This shell is called "Qi Gate" and supports iPhone and BlackBerry, so users can experience this function first without changing their mobile phones. At the beginning of 20 13, the wireless charging receiver will be completely slimmed down and become a built-in wireless charging receiver chip in mobile phone products, only the size of a fingernail. Nokia, Philips, LG, Samsung, Sony Ericsson, iPhone, HTC, Google, ZTE, Sharp, RIM and many other internationally renowned mobile phone manufacturers are very supportive of this technology, and wireless chargers may also be bundled with mobile phones.