In order to facilitate everyone to better grasp the use of DC brushless motor, Campani summarized the following five details of use:

1. If the product has no special requirements, the DC motor is not allowed to operate under the rated voltage. Because once the reverse connection operation will cause the permanent magnet demagnetization, if you must run in this way, then you must add a current limiting resistor to limit the current too large.

2. Pay attention to avoid demagnetization of permanent magnets due to excessive current, temperature changes and open magnetic circuit during disassembly, especially for Al-Ni-Co permanent magnet motors, which need magnetic short circuit protection during disassembly to avoid demagnetization.

3. When replacing the brush of the brushless DC motor, it is necessary to clean the surrounding electric carbon dust first, and then use alcohol and gasoline to clean the commutator. At the same time, pay attention to no-load running-in when using the new brush.

4. When the load is too large or the power transistor is burned due to high current caused by improper use, the power transistor will be used for protection, and the protection will destroy the driver because the current exceeds the specification.

5. When the load of the current motor is not small, the energy sent back to the driver when the device stops rotating will endanger the driver, so it is necessary to cooperate with the overvoltage protection circuit and the regenerative energy dissipation circuit for processing.

The details of the use of DC brushless motor have the above operational matters, do you understand clearly? Pay attention to Changzhou Kompani Motor Co., LTD., master more details of DC brushless motor.