May 02, 2024 
Professional magazine and portal dedicated to electronics 
Renesas Electronics Corporation, a premier supplier of advanced semiconductor solutions, today announced that its wireless power charging technology is integrated in the Active ES® pen solutions from Wacom, a leader in cutting-edge digital pen and ink solutions. The Renesas single-chip wireless power receiver IC delivers small size and high efficiency compared to alternative high-frequency charging solutions. Renesas wireless charging technology is small enough to fit into digital pen and conveniently charge it while wirelessly docked to the tablet.
Integrating the low-frequency wireless charging into Wacom’s Active ES® pens opens up new possibilities. This novel and innovative concept brings the convenience of wireless charging to accessories, enabling users to creatively express themselves on both smartphones and tablets.
About Renesas Wireless Power Receivers
Renesas wireless power receivers are the world’s highest power density devices and feature high levels of integration and high efficiency at light loads. They are well-suited for low-power applications such as earbud case charging and digital pens. A unique ping-detect feature gives an early indication of the wireless charger connection and improves thermal performance at the end of complete battery charging. Additionally, the integrated 32-bit processor offers a high level of programmability and design parameters that can be easily configured to work with small rod coils that fit into digital pens.
Renesas is the global leader in wireless power solutions for both the power receivers (PRx) used in smartphones and other applications, as well as the power transmitters (PTx) used in charging pads and automotive in-car applications. Visit renesas.com/wirelesspower to learn more about Renesas’ wireless power solutions.
Winning Combinations
Renesas has combined complementary components that work together seamlessly to create Winning Combinations for a variety of systems powered by wireless charging. An example of one of these solutions is the Pen Scanner / Reader design that can be leveraged for additional smartphone and tablet accessories. Renesas offers more than 300 Winning Combinations with compatible devices for a wide range of applications and end products. They can be found at renesas.com/win.
For more information see the original Press Release.
