This morning we stopped by TI's energy management group to draft out what all they had in store, and got to check down some demos of their new ordinal generation wireless power chipsets. The parvenu solutions meet the 5W Wireless Power Consortium (Qi) standard, and have a smaller total package area. TI demoed the BQ51013 second generation small form factor quality Rx PCB charging a sort of devices, including a Kindle. In appendix, TI has few newer small form factor (BQ5002010 and BQ5002011) charging Tx solutions that further reduce BOM cost and require lower input emf compared to their first generation counterparts.
TI also shortly teased its upcoming 10W solution charging an iPad 2. Though the current standard is just 5W for smartphones (1A@5V) obviously charging tablets and large tendency is something coming down the road for the Wireless Power Consortium. Astatine present, inductive chargers achieve around 70% efficiency.
Gallery: Ti Wireless Charging
At present, inductive chargers for smartphones generally require an external sleeve or accessory battery cover with the inductive coil and charger inside. Newer second-generation Rx solutions will drive fluff the size of the inductive charging solution, and inductive coils PCB (instead of hand-wound coils) will make it possible to eventually too make including wireless charging support on the boarding themselves.
Source: http://www.anandtech.com/show/5412/ti-wireless-charging-new-chipsets-and-10w-charging-for-tablets
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