Suggest Brushless DC motor controller for Space application

[muthukural001]

Hello all,

I am designing a circuit to control Brushless DC motor. As this is the space application, I am not getting any Brushless DC motor driver which is rated to Space application.I need to control two motors and the motor controller chip should have interface to MCU. Please suggest....



Regards,
Muthu

[Doctorandus_P]

"space" as the space in a cupboard drawer, or "space" as of on the dark side of the moon???

A lot of microcontroller manufacturers nowaday's have integrated hardware timers for generating 3-phase PWM for controlling BLDC motors.

One such example is the STM32F103C8T6, which is used on the "blue pill" boards and is very affordable. The VESC project uses a somewhat bigger STM32F4xx
STM32 is a bit hard to get going the first time though.

"SimonK" (used to be / is) an "ESC" (electronic speed controller) based on an AVR. But the AVR used does not have a dedicated Motor timer.

My advise is to make a list of uC's you are comfortable to develop with, and then look at the manufacturer site for hardware and software support. Some manufacturers have complete development kits with a uC board, motor controller, motor and example code.

Or search github / gitlab / etc for "BLDC" and find a project you like.
Your question is too general for more detailed advice
What is your budget? Power range? DIY (time consuming) or complete development kit?

[mbless]

I doubt you'll find one that was made to meet space applications, but it's not to hard to make your own. I made mine with a STM32F7 (overkill, but why not) and TI DRV8301 BLDC driver.

One commercial driver I know of is odrive, which also uses the DRV8301.

[tpowell1830]

Find a solid, 3 phase driver circuit that you have confidence in and in order to make space ready, we pot our boards in an epoxy to make it a brick like board. Potting will protect against pressure changes on the components.

Hope this helps...

EDIT: Potting also helps spread the heat of components, as well.