Brushless DC motor question
Brushless DC motor question
(OP)
I have a squirrel cage fan used in a car about 6" (15 cm) diameter. It is a part of the climate control seat blowing air to the seat bottom and back. The control board is built in the fan assembly. 4 wires are soldered to it, M+, M-, Control and Tach. My goal is just to make it run even at one speed. I suppose M+ and M- are for 12V power. What is Control? Thank you.





RE: Brushless DC motor question
I have some concern however since there is little reason to have M+ and M- and a tach signal if indeed the speed control is included in the motor. I believe you may be mistaken about that. Those particular labeled connections would normally be going to a motor controller that needs to see them.
But, just to make it go may work by supplying power to the M+ and M-. One polarity forward one backward.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Brushless DC motor question
RE: Brushless DC motor question
RE: Brushless DC motor question
Add a resisitive voltage divider to have 5V on control pin for maximum speed.
RE: Brushless DC motor question
Bill
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Jimmy Carter
RE: Brushless DC motor question
Keith Cress
kcress - http://www.flaminsystems.com