
Scientists in Japan have developed a new, highly efficient method for designing wireless power transfer (WPT) systems. Based on machine learning, the method enables a system to maintain stable voltage even as loads change — a key step towards broader adoption of wireless power.
WPT systems are already a key part of numerous devices, from smartphones and biomedical sensors to induction stovetops, which use the mechanics of WPT to heat cookware. But one of the key problems with current technology is that it struggles with power fluctuations. This is because they're load-dependent, meaning a system's performance is significantly affected by what device is being powered (the load).