GaN Talk Blog

This video is a review of the EPC91122, a compact GaN-based three-phase BLDC motor drive inverter optimized for humanoid robot joints and other space-constrained actuators. Built around the EPC33110 co-packaged GaN module, it combines power stage, gate drivers, sensing, control, and communication on a single circular board. With an onboard STM32 microcontroller, magnetic encoder, precise current and voltage sensing, and RS‑485/JTAG interfaces, it delivers high efficiency, fast dynamic response, and robust performance for advanced robotics.

Mobility is a driving factor in all economies. Electro mobility (or e-Mobility) is a clean and impactful way of keeping the gears of commerce grinding without contributing to the environmental stresses of inefficient motors or fossil fuel burning engines that cause damage to our planet. There is an ever-increasing demand for highly efficient and compact motor drive designs. EPC’s GaN-based motor drive reference designs for eMobility applications are in development to jump-start the competitive and environmentally friendly alternatives that support this trend.

Rethinking the Ordinary and Overcoming Mental Biases

Motor drive applications span several markets: industrial, appliance, and automotive. A commonality that occurs regardless of market is that when a new technology is proposed, it faces resistance to its adoption; after all, it is human nature to stick with what is known and resist change.