MCF8316A: 初始化时，反电动势常数异常

Can you share motor details?

Motor parameters (R, L, KE and max speed) details has to be proper.

Can you share more details about the setup?

L=12uH, max speed =50000rpm, kv=10000rpm/v, ke=0.04mv/hz

Is this issue still open, can you please reply.

你好，我的电机极对数是6，相电感是1.6uH，相电阻是0.6Ω，反电动势常数是0.04mV/Hz，最大转速是50000rpm，额定电压7.4V

Hello, my motor pole pair is 6, the phase inductance is 1.6uH, the phase resistance is 0.6Ω, the back EMF constant is 0.04mV/Hz, the maximum speed is 50000rpm, and the rated voltage is 7.4V

并且我没有使用gui

And I'm not using GUI software

之前测量有误，1.6uH是正确的数值。如果该芯片无法驱动这个电机，我是否可以使用MCT8316A来驱动它？（只要电机转速能够达到30000rpm就可以满足使用要求）

The previous measurement was incorrect, and 1.6uH is the correct value.If the chip can't drive this motor, can I use MCT8316A to drive it? (As long as the motor speed can reach 30000rpm, it can meet the use requirements)

你好，我在使用MCT8316A调试该电机时，存在电机启动偶尔失败的现象（启动时电机转动一段时间后突然停转并高频抖动，伴随有高频噪声），同时，也存在开环转入闭环时突然停转的问题，请问我该如何解决？

Hello, when I'm debugging this motor with the MCT8316A, there is an occasional failure in motor startup (the motor rotates for a while during startup and then suddenly stops and vibrates at a high frequency, accompanied by high-frequency noise). At the same time, there is also a problem where the motor suddenly stops when transitioning from open-loop to closed-loop. Could you please advise me on how to solve these issues?

Can you provide EE and customer name?

I want to recommend FOC solutions, can we explore?

我是林，TI是否有FOC集成控制芯片用于驱动该电机？先前的MCF8316A不支持驱动这个电机。同时我希望芯片支持最高50000rpm的转速（对应电频率5000Hz）

I'm Lin. Does TI have a FOC integrated control chip for driving this motor? The previous MCF8316A doesn't support driving this motor.Meanwhile, I hope the chip can support a maximum rotational speed of 50,000 rpm (corresponding to an electrical frequency of 5,000 Hz).

Max electrical frequency today is 1.8KHz and we have HS version can go upto 2.5KHz.

Do you have access to the motor? Can you share motor details?

你好，电机极对数为6，槽数为9，相电感1.6uH，相电阻0.65欧姆，最大转速50000rpm，额定电压7.4V，最大电流3A。目前我的问题是使用pwm频率100kHz，在开环启动时有时会突然停转，在开环切入闭环时同样会突然停转，所使用的芯片为MCT8316A。有哪些参数可进行调整？

Hello, the number of pole pairs of the motor is 6, the number of slots is 9, the phase inductance is 1.6uH, the phase resistance is 0.65 ohms, the maximum speed is 50000rpm, the rated voltage is 7.4V, and the maximum current is 3A. At the moment my problem is that with the pwm frequency of 100kHz, sometimes it will stop suddenly when the open loop starts, and it will also stop suddenly when the open loop cuts into the closed loop, and the chip used is MCT8316A.What parameters can be adjusted?