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onurefe / HenryMotorController

Henry Motor Controller is a MCU based closed loop stepper motor controller. Controller doesn't require any external position sensor; instead of it, it senses inductance variation of the motor coils and extracts position information.
MIT License
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Working Controller? #1

Open Bastler100 opened 4 years ago

Bastler100 commented 4 years ago

Hello Henry, do you build a working controller? Is there a pcb-layout available?

Many thanks for your answer Hans

onurefe commented 4 years ago

Hello Bastler,

I didn't complete this project since I had doubts about the outcome would be original since Trinamic had been accomplished similar stepper drives. There is a schematic available but not the layout. But the I want to see if this idea(monitoring coil inductances on the fly to monitor rotor position) does work well and I plan to complete it like one or two months.

Name Henry comes from the inductance unit btw :) Thanks for your interest, Onur

Bastler100 commented 4 years ago

Hello Onur, many thanks for your answer. Do you think its possible to use a standart stepperdriver and a STM32F3xx evaluation board? So you can build a prototype on a breadboard without pcb, and it will be possible to use every stepper with the same controller.

Many thanks for your answer and good luck for development a controller prototype Hans

onurefe commented 4 years ago

I think it's possible. At first I was thinking of doing FFT to detect phase shifts(but just for the harmonics of the PWM signal) and because of this I wanted to control PWM signal. But in a way; that may be better to do it by standard stepper driver. But I changed my mind and I see it's more important that people can use it easily. I guess I can do that.

Thanks for your recommendations and good wishes;)