Three-phase induction motors are brushless motors. The stator is copper-wound and the rotor is typically an aluminum squirrel cage. The typical drive configuration is a three-phase bridge (three half-bridges) modulated to provide three sine wave voltages to the stator.

Typically used in higher power applications, the driving portion can be composed of Power MOSFETs or IGBTs with high-voltage gate drivers or by power modules integrating three half-bridges and the related gate-driving stage. Field-oriented-control or scalar (volts / hertz) control algorithms are implemented in the microcontroller that controls the inverter.

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