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Despite their different structures, all 3-phase permanent magnet motors (BLDC, PMSM or PMAC) are driven by a PWM-modulated three-phase bridge (three half bridges) so as to supply the motor with variable frequency and amplitude three-phase voltages and currents.

To provide the highest level of design flexibility, ST’s product portfolio includes specific products for both high and low-voltage applications like monolithic drivers ICs, power MOSFETs, IGBTs, gate drivers, power modules and dedicated microcontrollers to address a broad range of motor control applications.

3-phase 6-STEP Control
3-phase 6-STEP Control
In a 6-step or scalar control, normally only the frequency and magnitude of the voltage fed to the motor are controlled...
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3-phase Field Oriented Control (FOC)
3-phase Field Oriented Control (FOC)
Field-Oriented Control (FOC), also called Vector Control, is a method used in variable frequency drives to control the torque and thus the...
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