I am in big trouble with sensorless BLDC motor project. I am trying to achieve the control of sensorless BLDC motor using microcontroller.
I am using renesas microcontroller RL78-G14. I am able to run the motor but not getting first start.
I am trying by sequence changing with particular delay but its not working.
Once I rotate motor with hand, the motor is starting and then control is through back EMF.
At back EMF stages the motor is working properly. I am worried about my project just because of start up issue.
Please help me with the code to start the initial rotations.
Seriously I am worried about my project.
Requesting you all to reply me.
In reply to Mike Clements:
In reply to Pica:
What type/model of brushless DC motor are you using? Do you have a part number or data sheet for it? Mike Clements RenesasRulz Moderator
Hi Pica, I am very sorry with the very late response. Can you tell us what RL78/G14 specific board did you used? Also, please tell us what motor driver did you used to drive the motor. It could be possible that problem has something to with the driver. JB RenesasRulz Forum Moderator
In reply to JB:
AP3.pdfHello JB, Thanks for your reply. I am always waiting for your reply as you are always helping me in late responses. Thanks. I am using RL78/G14 micro controller. The controller part number is R5F104BA. The driver is generalized driver. I am attaching schematic diagram for your reference.