How to make brushless motor controller - Brushless BLDC Motors 12V - 24V
Video Statistics and Information
No captions available for this video.
Channel: D. Creative
Views: 621,321
Rating: undefined out of 5
Keywords: make a power generator, 12v . pulse soldering iron, how to make brushless motor controller, battery soldering iron, air conditioner block as generator, How to make brushless motor controller, how to make generator, create a simple generator, 3 mosfet, D. Creative, DIY ESC, esc cicuit, mosfet, mosfet esc, generator, free energy generator, free energy, dcreative, brushless motor controller, ESC use 3 mosfet
Id: se-RxeFEncY
Channel Id: undefined
Length: 14min 48sec (888 seconds)
Published: Thu May 13 2021
Please note that this website is currently a work in progress! Lots of interesting data and statistics to come.
TL;DW: here is the circuit.
Note that the middle pin of the MOSFET is connected to the tab (Drain). The gate is on pin 1 (left-most).
Interesting circuit. It looks to me that each MOSFET is driving the subsequent one, but turning on the subsequent one also turns off the previous one, thus producing the spikes on each phase needed for a brushless motor.
Usually you do this with a microcontroller (or a purpose built ESC ASIC), but this is an interesting minimalist approach to at least get the motor spinning.
I guess that it senses the voltage of a winding. When it's positive, it drives the gate of the next MOSFET. The folks at /r/Motors can explain why a winding would become positive (I don't know why).
Is the same circuit as this:
https://www.rmcybernetics.com/science/diy-devices/diy-induction-heater
but with three phases instead of two. it doesn't need the capacitor, because the inertia of the motor provides the time constant.