Small Cooling Fan of the motor speed

For a "Small Cooling Fan" brushless DC motor, the characteristic curve of different lead angle (0 degrees, 12 degrees, 30 degrees, 40 degrees, 50 degrees) under the speed / torque generally, with the lead angle increases its speed, torque, power range corresponding increase, the new brushless motor drive circuit only uses a linear Hall element that can be as low into the corner to start "Small Cooling Fan" brushless motor (no different from the old version Brush motor drive circuit requires a large Hall element and two small Hall element), "iOS雷竞技 " start to about 3,000 rpm per minute automatic turn up into the corner can continue to improve to 5400 revolutions per minute.