ST and WiTricity collaborate on resonant wireless power transfer

STMicroelectronics is collaborating with WiTricity, a pioneer in wireless power transfer over distance, in the development of semiconductor solutions for magnetic-resonance-based wireless power transfer. The goal is to bring convenience to the powering and charging of consumer electronics and Internet of Things (IoT) devices, as well as medical, industrial and automotive applications.

The companies’ semiconductor solutions will combine WiTricity’s foundational intellectual property and wireless power-transfer mixed-signal IC-design expertise with ST’s leadership in power-semiconductor design, fabrication and packaging capabilities and resources. Power transmit and receive systems built with these new semiconductors aim to deliver spatial freedom, as well as wireless fast charging of one or more devices at the same time.

The contemplated semiconductor offerings include designs that comply with the AirFuel magnetic resonance specification as well as multimode solutions that incorporate both resonant and inductive charging. Dubbed ‘Wireless Charging 2.0’, the solutions will be able to efficiently charge metal-body smartphones, tablets and smart watches.

“Combining the expertise of WiTricity, the innovator in wireless power-transfer and magnetic resonance technology with ST’s resources and key IP, including Smart Power technologies and RF Bluetooth low energy, allows us to deliver complete, efficient wireless-charging solutions that increase convenience and ease of use while delighting consumers and exceeding their expectations,” said Matteo Lo Presti, VP and GM, Analog, in the Analog and MEMS Group, STMicroelectronics. “Game-changing technology from this ST and WiTricity collaboration will enable product designers across the globe to rid the world of cumbersome wires and charging cables and allow us to promote a broader set of our own semiconductor offerings into these emerging markets.”

“STMicroelectronics is a global leader in semiconductor solutions for power electronics and a compelling choice to rapidly commercialise fast and efficient wireless-charging chipsets based on WiTricity’s silicon designs and magnetic-resonance technology,” said Alex Gruzen, CEO of WiTricity. “With ST’s vast experience in semiconductor design and fabrication, as well as its access to leaders in the consumer electronics, automotive and industrial markets, this collaboration puts us in a strong position to accelerate the adoption of resonance-enabled wireless charging.”

Pictured: A WiTricity charger for laptops.