3-Phase BLDC Motor Sensorless Control Using MC56F8013

Control Theory2.2 Power StageThe voltage for the 3-phase BLDC motor is supplied from a typical 3-phase power stage. The 3-phasepower stage is controlled by the hybrid controller’s on-chip PWM module; which creates the desiredswitch control signals. A hybrid controller with a BLDC motor and a power stage is shown in Figure 2-4.U DCBQ1Q3Q5PWM_Q1PWM_Q3PWM_Q5C1Q2Q4Q6PWM_Q2PWM_Q4PWM_Q6GNDPhase_APhase_BFigure 2-4. 3 Phase BLDC Motor Power StagePhase_C3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 016 Freescale Semiconductor