lakerhy
Newbie level 3
- Joined
- Jan 15, 2005
- Messages
- 3
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,281
- Activity points
- 28
Hi all:
I am looking for an easy solution for a sensorless bldc motor application to replace a microcontroller + bemf measurement solution.
I found TB6575 quite promising.
the **broken link removed**
My application requires varying the speed when manually adjusting the applied voltage. There is no need to use PWM thing. If using TB6575, set the duty cycle to 100% and don't use the close loop, the speed will only depend on the voltage you apply to the motor. Can I use this chip this way?
Another question is about the motor voltage limit. If the applied voltage is under the voltage rate of the motor, IGBT and the IGBT driver like IR2233, for TB6575, matched with suitable surrounding circuits, is it possible to use it under HV say 500V circumstances?
Thanks!
I am looking for an easy solution for a sensorless bldc motor application to replace a microcontroller + bemf measurement solution.
I found TB6575 quite promising.
the **broken link removed**
My application requires varying the speed when manually adjusting the applied voltage. There is no need to use PWM thing. If using TB6575, set the duty cycle to 100% and don't use the close loop, the speed will only depend on the voltage you apply to the motor. Can I use this chip this way?
Another question is about the motor voltage limit. If the applied voltage is under the voltage rate of the motor, IGBT and the IGBT driver like IR2233, for TB6575, matched with suitable surrounding circuits, is it possible to use it under HV say 500V circumstances?
Thanks!