Controller type for BLDC fan motor

Help & Support Robot Parts
1

Hi All,

I am new to RC and robotics and I am needing some guidance in a project I am currently undertaking, I am supercharging a small 4 stroke engine using a
3-phase BLDC motor with the following specs:

[highlight=#ffffff] Voltage: DC 8-16.8V[/highlight]
[font=Arial][highlight=#ffffff]
][size=2]Maximum current: 25A[/size]/:m]
][size=2]Maximum power: 400W[/size]/:m]
][size=2]Maximum thrust: 1200g[/size]/:m]
][size=2]Maximum speed: 52000 RPM[/size]/:m]
][size=2]KV Value: 3100[/size]/:m][/highlight][/font]
I have all the mechanical and induction side sorted but need help with a suitable motor controller, it could be driven via a manual potentiometer or if possible electronically by using the carburettor TPS circuitry which has a resistance range of 1-5K Ohm??? Ideally the motor would need to respond to throttle change as quickly as possible to prevent lagging, I am thinking along the lines of an RC motor controller or 3-phase BLDC PWM. Any help in the right direction would be much appreciated.

Thank you :slight_smile:

2

Hi ChaseM

If you want your system to react automaticaly to the TPS sensor you will need something to acquire the data and process it.
The BLDC motor / fan is a ducted fan system from R/C ?

:slight_smile:

3

Thanks for your reply DiaLFonZo, yes exactly what I need an electronic speed controller that has a manual potentiometer, I would simply remove the pot. and connect the TPS signal in its place, my understanding is the TPS is just a potentiometer. I will take a look around the RC stores and see what I can find

4

If your TPS is connected to the ECU, you will not be able to connect it directly to a controller board.
Your signal will need to be acquired by a Microcontroller and process to send the right command to the ESC.