Brushless DC motor drive board module Speed control board Optical drive hard disk motor controller 7V-12V improved version

[Drive voltage] DC 7-12V [Working current]= 1.2A [Speed?? adjustment range] 0%-100% [Phase Inversion Control] Yes [Voltage reverse connection protection] Yes [Overcurrent protection] Yes [Short Circuit Protection] Yes How to identify the common port of a 4-wire motor: Measure the four terminals with the resistance *1 of the multimeter. One of the terminals and the other three terminals have the smallest and equal resistance, then this terminal is the com terminal, which is the common Terminal. The driver board automatically recognizes the 3-wire or 4-wire brushless motor, and the 4-wire brushless motor can also be disconnected from the com line.
Note: The power indicator of the brushless driver board is extinguished after the short circuit overcurrent protection of the brushless driver board. At this time, the power supply of the driver board should be cut off, and the driver board can be powered after dealing with the cause of the overcurrent. After the power indicator lights up, it can work normally.