With mobile devices becoming mainstream products in the market, the sights of multiple phones on each hand are no longer new. In order to enable users to be more convenient in resolving charging, they can get rid of the shackles of traditional wired charging. Wireless charging technology is even more necessary for its existence. However, the choice of security and technical standards is still the biggest problem. 160-250mm pipe extruder, PVC Three Layers Pipe Extruder, China 160-250mm pipe extruder KERKE Extrusion Equipment Co.Ltd. , http://www.kerkeextrusion.com
At present, the wireless charging technologies are WPC, PMA and A4WP camps, of which the WPC and PMA wireless charging technologies have the highest market visibility. However, if the solution is WPC, the relevant wireless charging products launched by the camp are the best. However, the market is still the most concerned and questioning issue for wireless charging technology. It is still a question of whether wireless charging microwaves are safe for the human body. He Xinlong, marketing manager of TI's high-performance analog products, said that the distance between WPC and PMA wireless charging technology is 5mm, and the impact on the human body is reduced to a minimum. On the other hand, the A4WP camp is farther away from supporting wireless charging, so it is safer to consider. There are doubts. In addition, with the WPC 1.0 version already expired this year, the WPC 1.1 version took over, with the first emphasis on the FOD function. In this regard, He Xinlong stressed that the current WPC 1.0 certification time has expired, so all manufacturers have launched WPC 1.1 version of wireless charging technology related products.
In the WPC 1.1 version, the FOD function is particularly emphasized, which can effectively prevent users from accidentally placing metal objects such as rings and rings on the wireless charging board, causing the system to generate heat or overload. In addition to solving the problem of metal foreign objects, it will also improve the minimum time period for transmitting information packets at the wireless charging receiver, so that the receiver can immediately notify the transmitter to stop power transmission when a metal foreign object is found.
Although the wireless charging related products provided for the WPC camp on the market currently account for the highest market share, and the PMA camp has emerged as a rising star, whether or not there is a future trend toward providing a solution capable of supporting dual-mode wireless charging technology, said He Xinlong. Due to the high similarity of the WPC and PMA coils, it is suitable for the development of integrated dual-mode wireless charging technology. Currently, TI has started to design, but due to the fact that the technical standards of the PMA camp have not yet been finalized, dual-mode wireless charging is supported. The timing of the chip launch of the technology is slow, and at this stage it can only wait for the PMA camp to accelerate its pace.
Dual-mode wireless charging is still lacking