Case Study: Witricity achieves scalable, efficient long-range wireless charging with Comsol

WiTricity Leverages Magnetic Resonance for Flexible Wireless Charging

Witricity, a Watertown, MA–based developer of magnetic-resonance wireless power transfer, needed to design scalable, efficient, and safe wireless charging systems for everything from smartphones to electric vehicles while minimizing costly physical prototyping and meeting regulatory limits. To address these challenges they partnered with Comsol and used COMSOL Multiphysics to simulate electromagnetic and thermal behavior across coil designs, materials, and operating conditions.

Using Comsol’s COMSOL Multiphysics, Witricity modeled coil configurations, extracted circuit parameters, predicted power dissipation and thermal loading, and evaluated specific absorption rate (SAR) to confirm compliance with FCC safety guidelines. The simulations sped design validation, reduced prototyping time and cost, enabled optimizations that improved efficiency and extended charging range, and supported creation of simulation apps so engineers could quickly test and scale the resonant wireless power technology across consumer, automotive, and medical applications.

Witricity

Andre Kurs

Co-Founder