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What are the causes of failure of high-power DC motor controllers?

2019-10-15 11:05:00

1. The damage of power devices is generally caused by the damage of the motor, the poor quality or insufficient selection of the power device itself, the installation of high-power DC motor components or the looseness of the vibration, the overload of the motor, the power Caused by device drive circuit damage or parameter design.
2. Internal power supply is damaged:
The damage to the internal power supply of the high-power DC motor controller generally has the following possibilities: the internal circuit is shorted, the peripheral control components are shorted, and the external leads are shorted.
3, intermittent work:
High-power DC motor controllers work intermittently. Generally, there are the following possibilities. The device itself has parameters that drift in high or low temperature environments. The overall design power consumption of developed DC motor controllers is high, which leads to high local temperature of some devices. Make the device itself into a protection state, and the contact is bad.
4. The control signal is lost due to the abrasion of the connecting line and the bad or falling of the connector:
The connection wire is worn and the contact plug is in poor contact or comes off. Generally, there are the following possibilities. The choice of wire is not reasonable, the protection of the wire is incomplete, and the connector is not crimped firmly.

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