Buy a low-cost 12V/24V brushless DC motor controller online, drive motor under 120W, high speed 20,000 rpm, 5V Undervoltage protection helps prevent over-discharge and extend battery life. DC brushless drivers are rugged and have a long service life.
- Model: BLDC-BLD-120A
- Power Supply: 12V ~ 30V DC
- Typical Power: 24V DC
- Output Current: 8A
- Over Voltage Protection: 5V
- Under Voltage Protection: 20mA
- External Potentiometer: 10KΩ
- Input Analog Voltage: 5 VDC
- Speed Control Range: 20000rpm
Dimensions (Unit: mm)
Tips: I need to design a controller for a three-phase BLDC motor, how can I correctly identify which phase needs to be energized in a given combination?
The operation of a BLDC motor is based on a simple force interaction between the permanent magnet and the electromagnet. In this case, when coil A is energized, the opposite poles of the rotor and stator are attracted to each other. As a result, the poles of the rotor move towards the vicinity of the energized stator. When the rotor is close to coil A, coil B is energized. When the rotor is close to coil B, coil C is energized.