AN4076

List of figures

Doc ID 022923 Rev 1

3/14

List of figures

Figure 1.

Field oriented control scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2.

Power stage block diagram (three-shunt-resistor case) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 3.

Motor current feedback conditioning circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 4.

SV-PWM duty cycle, motor current and shunt resistor current . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 5.

Typical waveform in the motor current electrical period timeframe. . . . . . . . . . . . . . . . . . . 10

Figure 6.

Typical waveforms in the PWM period timeframe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11