GaN Talk a blog dedicated to crushing silicon
Term: Noise Reduction
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Reduce Audible Noise in Motor Drive Designs Using eGaN FETs and ICs

Reduce Audible Noise in Motor Drive Designs Using eGaN FETs and ICs
Jan 15 2021

Brushless DC (BLDC) motors are popular and finding increasing application in robotics, e-mobility, and drones. Such applications have special requirements such as lightweight, small size, low torque ripple, low audible noise, and extreme precision control.  To address these needs, the inverters powering the motors need to operate at higher frequency but require advanced techniques to reduce the resultant higher power loss. Enhancement-mode gallium nitride (eGaN ®) transistors and integrated circuits offer the ability to operate at much higher frequencies without incurring significant losses.