Renesas Says Its Qi-Based Wireless Charging Tech Powers Wacom Active Pens

Renesas Electronics’ wireless charging technology is in Wacom’s Active ES digital pen, Renesas said Friday. Its single-chip wireless power receiver IC offers small size and high efficiency vs. high-frequency charging, it said. The pen is charged while docked to a tablet or smartphone equipped with a Qi wireless charging transmitter, a spokesman emailed.