I have 2 blower motors. I know where they came from and what the models are but I cannot find any real info on them, and I don't know motors enough to know what I have or how to use them. I dabble in electronics a little but I am limited in certain aspects, stepper motors for example.
They are 2 blow motors from working REMStar Plus CPAP machines. I nabbed them in hopes I could use the blowers. I checked the voltage with my meter (in auto mode) coming off the green/black/white cable and all the pins fluctuated between 4.7-4.9 VAC no matter which pin combination I tested. I did not check the other smaller cable. The green/black/white cable appears to be the power, the other I think is for sensor data or something, it will run without the smaller harness plugged in. It looks like the motor comes off some NDS8858H chips, via google they appear to be mosfet half bridges?
What kind of motors are these (AC, DC, PWM, stepper etc)? How can I use them (what is required to talk to them, straight power or PWM etc)? I want to use them with an arduino or raspberry pi if possible. Thanks!
Here are some pictures.
This is the back of the board the motor connects to, the harness traces out (visually) to these chips.
The side of the motor