LAS VEGAS – Chips designers showed support for multiple wireless charging standards at the International CES this year, including a new way of using the technology on electric cars.
"The combined global market for wireless power receivers and transmitters is expected to rise to 1.7 billion unit shipments in 2023, up from about 25 million in 2013," Ryan Sanderson, associate director of power supply & storage components at IHS Technology, said in a release.
There are several competing wireless charging standards on the market, which is currently dominated by the Wireless Power Consortium’s (WPC) Qi, a charging technique based on the closely-coupled coils of magnetic induction. However, convergence is occurring as major industry groups and chip companies develop bridge standards and products that also include magnetic resonance charging, a loosely-coupled coil arrangements.
At CES, industry groups Power Matters Association (PMA), a promoter of inductive charging and the resonance-based Association for Wireless Power (A4WP) announced the creation of a merged organization that will champion both technologies, as well as multimode charging implementations.
This trend toward convergence was echoed in several demonstrations from leading chip companies. Qualcomm showed off a wirelessly charged car, while MediaTek and Broadcom demoed multi-standard cell phone chargers. The resonant standard is not widely available in products, but industry experts hope bridge products will ease the transition for that market.