Jun Kai produce cooling fan, for example, these are the 12V 5V 24V DC fan, then what is the DC fan, of course, is not simply a DC input voltage so simple conductor through current creates a magnetic field around, if this conductor placed in another fixed magnetic field, will produce suction or repulsion, causing objects to move.
　　DC fan blades inside, attached to a pre-filled with the magnetic rubber magnets. Surrounded by silicon steel, two sets of coils wound around the axial center portion, and a Hall sensor component as a synchronization detection means for controlling a set of circuits, the circuit of the two sets of coils wound around the axis of rotation of work. Silicon have different magnetic poles, the magnetic pole and the rubber magnets generate repulsive force absorption. When the suction fan of repulsion greater than the static friction, the natural rotation of the blades. Due to the Hall sensor component provides a synchronization signal, the fan was able to continue running. This is the direct cause of the rotation of the fan will tell the