[By NBC-1TV H. J Yook]LS Cable & System (President & CEO Ja-Eun Koo) announced that it developed the world’s thinnest (0.32mm) wireless charging module for smart phones.

As this product has the near field communication (NFC) function as well as the magnetic induction wireless charging function, it will make it possible to use the wireless charging function and the wireless data communication function while maintaining the thickness of the current smart phones. Considering that the existing charging module was 0.5mm thick, the thickness has been reduced by a whopping 40%. This product is in conformity with the Qi certification of the Wireless Power Consortium (WPC), currently leading the field of wireless charging, and is compatible with the products of 138 companies around the world.

To develop the thinnest wireless charging module, LS Cable & System developed a film-type coil in place of the winding coil, and introduced the pattern partitioning technology and improved the two problems, i.e. heat and declining charging efficiency, which have been the obstacles to the thinning of the charging module. The wireless charging module of LS Cable & System takes about two hours to go from full discharge to full charge, and has the same efficiency as the wired charger (for 2,000mAh). Also, LS Cable & System also succeeded in keeping the temperature rise due to the AC resistance during charging below 5℃. LS Cable & System has already applied for a patent for this technology.

A charging cover had to be separately manufactured for existing wireless charging modules, but this product will be installed in the rear cover of the cell phone where the NFC antenna is located, and takes charge of cell phone charging and near field communication. Accordingly, manufacturers can use existing molds without having to make additional parts and give the wireless charging function to the cell phones (wireless charging pad is necessary). Also, LS Cable & System began to develop a product for IT devices like tablets and notebooks that require large power transmission, and is developing products that can respond to various international standards other than the Wireless Power Consortium like the magnetic resonant method required by A4WP, which was made by Qualcomm and Samsung Electronics, the Power Matters Alliance (PMA), in which Proctor and Gamble (P&G) participates, and the Consumer Electronics Association (CEA) in which BMW takes part.

“As smart home appliances are proliferated in the future, wireless charging will become part of our lives,” said Mr. Hyeong-Won Kim, director in charge of the device business division. “LS Cable & System was the first in the world to introduce wireless charging in 2007. We are planning to capitalize on our technical know-how to introduce a greater variety of wireless charging technologies to the global market.