Part Number: DRV10970EVM
Other Parts Discussed in Thread: DRV10970
Hello,
I am trying to connect a BF3211NB2B BLDC motor (manufactured by Constar) to the DRV10970EVM evaluation board. This motor has four connections: U, V, W, and COM (center tap/neutral point).
I have connected the following:
- P1 — 12V DC power supply
- P2 — Motor phases U, V, and W
- COM — Currently not connected
I am using the onboard potentiometer to control the motor speed. However, the motor only runs intermittently — most of the time it just produces noise and fails to start properly.
I suspect the issue is related to the COM (neutral/center tap) wire not being connected, but I cannot find any information in the DRV10970EVM User's Guide (SLAU673) on how to connect this type of motor.
Could you please advise on:
- Where should the COM wire be connected on the DRV10970EVM board?
- Are there any jumper settings that need to be configured for this motor type?
- Is there an application note or example for connecting a 4-wire BLDC motor to this eval board?
Thank you for your assistance.
