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What are the protective measures for high-power DC motors?

2019-12-19 10:06:00

Recently, many customers contacted us and asked us about the problems they encountered in the use of high-power DC motors . I hope we can help. Today, Xiaobian has knowledge about the protective measures of high-power DC motors in these issues. Discuss with you, hope to bring inspiration and help to our customers and friends, so that everyone has a deep understanding of it. In this way, everyone can know what to do in the future in the process of use, and don't panic and play the biggest role of high-power DC motors.

1. When the load is too large or improperly used, a large current will be caused and the power transistor will be burned. In order to protect the driver from being damaged due to the current exceeding the specifications, the power transistor is generally increased in current resistance or a current sensor is added as protection.

2. When the load of the high-power DC motor is not small, when the motor stops rotating, the energy and overvoltage returned from the device to the driver will endanger the driver. This can be prevented by using an overvoltage protection circuit and a regeneration energy dissipation circuit.

3. Others whether the hall-sensor is normal or not will also affect the correctness of pwm control, which can be judged by the control department and warned in due time.

Therefore, before use, taking appropriate protection measures for DC motors is beneficial to protect the internal circuit of the motor, and it is also conducive to the smooth operation of the internal current, reducing the load and pressure of the motor, and paying attention to the maintenance of the equipment. And maintenance.

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