Datasheet

TMC4671 Datasheet • IC Version V1.00 | Document Revision V1.03 • 2018-Sept-06

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4.10.6 Space Vector PWM (SVPWM)

Note

The Space Vector PWM does not allow higher voltage utilization. This will be ﬁxed

in next version of the chip.

A single bit enables the Space Vector PWM (SVPWM). No further settings are required for the space vector

PWM - just ON or OFF. The power on default for the SVPWM is OFF. Space Vector PWM can be enabled

to maximize voltage utilization in the case of an isolated star point of the motor. If the star point is not

isolated, unintended current ﬂows through the star point. Space Vector PWM is only used for three-phase

motors. For other motors the SVPWM must be switched oﬀ.

5 Safety Functions

Diﬀerent safety functions are integrated and mapped to status bits. A programmable mask register selects

bits for activation of the STATUS output.

Internal hardware limiters for real time clipping and monitoring of interim values are available. LIMIT or

LIMITS is part of register names of registers associated to internal limiters. Please refer to table 17.

Bit Source

0 pid_x_target_limit

1 pid_x_target_ddt_limit

2 pid_x_errsum_limit

3 pid_x_output_limit

4 pid_v_target_limit

5 pid_v_target_ddt_limit

6 pid_v_errsum_limit

7 pid_v_output_limit

8 pid_id_target_limit

9 pid_id_target_ddt_limit

10 pid_id_errsum_limit

11 pid_id_output_limit

12 pid_iq_target_limit

13 pid_iq_target_ddt_limit

14 pid_iq_errsum_limit

15 pid_iq_output_limit

16 ipark_cirlim_limit_u_d

17 ipark_cirlim_limit_u_q

18 ipark_cirlim_limit_u_r

19 not_PLL_locked

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