DRV8353RS-EVM: What happens if I connect and run 60 degree HALL sensor placed motor ?

Chandra,

The DRV8353 can only work with 120 degree hall sensors, you would need to use the MCU with the 60 degree hall sensors and then use the MCU to drive the hall sensor inputs with the phase adjusted for 120 degree operation. 

As a reminder, 3 of 60 degree hall sensors only cover 180 degrees of the circle, or half of 360 which is what 3 sensors at 120 each will cover.

Regards,

-Adam

Hi Adam,

Thank you for the information

I found a workaround below for correcting the phase of 60 deg HALL sensors to 120 deg, please let me know is below a perfect solution

120deg Hall Effect Sensors:
The following diagram shows 120-degree hall-effect sensors. Notice that there is electrically 120 degrees between hall transitions.

60deg Hall Effect Sensors:
The following diagram shows 60-degree hall-effect sensors. Notice the Hall 3 signal is inverted (compared to 120-degree hall3) This changes the number of electrical degrees between the rising edge of the hall states.

All of the hall motors Compumotor uses are 120degrees. If we use an inverter on Hall 3 we can change a 60degrees hall state to 120degrees and vise versa.

Request you confirm with your ASIC team that above workaround is good enough to make it work

thanks, Chandra..