Basic DIY Brushless Motor Controller

Thread Starter

arda99

Joined Aug 29, 2025
5
Hello

I am planning to build the DIY BLDC motor controller shown in the attached video and schematic. ''
''
My plan is to use this circuit to drive the A2212 1200KV brushless motor ''https://www.direnc.net/a2212-quadcopter-1200kv-fircasiz-motor''

bldc devre.png

My question is: Can I safely test and run this setup using a standard school laboratory bench power supply? (0-32V)

I have read that this motor draws around 20A under load, but the no-load current is typically around 1-2A. Is this information accurate? I want to confirm if a standard lab PSU would be sufficient for at least no-load testing.
 

Jerry-Hat-Trick

Joined Aug 31, 2022
775
I don't recognise the language in the link but it looks like the motor draws 0.5A at 10V and the power consumption is 5.5W which makes sense. I presume the 1200KV is the no load speed? So I think the lab PSU should be fine and typically you can set the current limit
 
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