AN3165

List of figures

Doc ID 17180 Rev 1

5/31

List of figures

Figure 1.

Block representation of STM32 digital PFC concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 2.

STM32 digital PFC: connections for the boost and control stages . . . . . . . . . . . . . . . . . . . 10

Figure 3.

Use of peripherals for STM32 digital PFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 4.

Digital PFC timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 5.

STM32 dual FOC MC topology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 6.

Control strategy block diagram for STM32 dual FOC MC . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 7.

STM32 peripherals used by dual FOC MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 8.

ADC and FOC execution timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 9.

Free MCU time vs PWM frequency in dual FOC MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 10.

Integrated firmware elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 11.

Voltage management timing in STM32 dual FOC MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 12.

Voltage management timing in integrated firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 13.

Triggers for STM32 ADC3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 14.

Connection topology for integration of dual FOC MC and digital PFC . . . . . . . . . . . . . . . . 27

Figure 15.

System running . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 16.

Modified input stage for 3-ph inverter boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28