If you're one of the first on your block to have picked up a Nokia Lumia 920, you might wonder why it's so forgiving with where you set it down on the wireless charging pad. TI is more than willing to share. The 920, 820, Fatboy charging pillow and JBL PowerUp speaker all use a new TI bq500410A controller whose support for new transmitters gives it a charging area four times larger than we're used to. The 2.76 by 0.79 inches of coverage might not sound like much, but it's much wider than the previous 0.71 square inches while preserving a 70 percent efficiency and a safety cutoff if something gets in between.
Engadget , TI details the wireless power chip in the Lumia 920, offers four times the charging area, TI details the wireless power chip in the Lumia 920, offers four times the charging area
