Why Not A Wire? The case for wireless power.
Kalyan Siddabattula - System Architect, bqTESLA Wireless Power Solutions, Texas Instruments
What is the efficiency of a traditional wired charger? And how does that compare with wireless charging?
This presentation analyses the efficiency losses in the total system chain, including AC/DC conversion and battery charging regulator. An example demonstrates that a wireless charging chain can be as efficient as a wired charger when the receiver implements 'direct charging'.
The complete presentation is also available as download: Why Not A Wire - The case for wireless power.pdf