May 04, 2024 
Professional magazine and portal dedicated to electronics 
ROHM Group company LAPIS Technology developed a chipset capable of providing up to 1W of wireless power for compact and streamlined wearable devices, and for industrial smart, miniaturized and sealed solution.
The ML7661 (transmitter) and ML7660 (receiver) eliminate the need for an external MCU by incorporating a control circuit required for transmission/reception, resulting in the industry’s smallest system size in the 1W class. This makes it ideal for wearables with a large battery capacity designed to be worn for long time frames. Typical products are wristband blood pressure monitors, fitness trackers, smart watches, and hearing aids, for example. Moreover, the adoption of the high 13.56MHz frequency band enables the support for Near Field Communication (NFC).
Providing wireless power and communication in a single chipset contributes to improved design flexibility in devices with rotating mechanisms that would normally be restricted by wired designs –such as industrial equipment, PC cooling fans, and e-bike torque sensors (more info).
