Types and characteristics of wireless charging coils
Wireless charging coil, in essence, is the antenna coil, there are many indicators, such as impedance, frequency, etc.. Two kinds of sub emission and reception. There is close, there are remote, but considering the electromagnetic radiation, or by distance (2-3mm) of the right, there are many manufacturers support; transmitting and receiving coils to the resonant frequency, used in pairs, that is to say QI is a wide band (110Khz-205Khz); terminal is different, different process of transmitting coil and receiving coil antenna, transmitting antenna installation if the environment permits, can use some thick copper multilayer winding, that is to say, do not pay attention to the thickness of the antenna. But the receiving antenna, considering the installation position, to thin it, especially the intelligent mobile phone, there is space to install only the inner side of the casing;: wireless charging coil antenna in the mobile phone, the best installation location in the mobile phone shell inside, because the charging gap, charging efficiency will be low, a corresponding current loss of about 0.1mA microns and 1000 microns (1mm) will be a loss of more than and 100 ma. More information, please pay attention to gold like electronic, we will update the relevant product knowledge for you.
