Servo power supply

Abstract

The invention discloses a servo power supply, and belongs to the technical field of servo motors. An input filter circuit, a driving circuit, a control end and a test circuit are arranged, when the servo power supply is used, the input filter circuit processes an input power supply, an auxiliary power supply supplies power to the driving circuit, and then the driving circuit drives an inverter; after the current is processed by the rectifier and the inverter, the current is processed by the high-frequency rectifying and filtering circuit and is output as direct-current filtering, so that the mode is fast in dynamic response of operation, high in overall efficiency, excellent in output stability, low in matching output ripple, high in anti-interference capability and complete in protection function; and compared with an existing servo power supply, the servo power supply is internally provided with the test circuit, so that the servo power supply can be directly matched with the detection circuit for troubleshooting after a fault occurs, the servo power supply can be detected through the test circuit to detect whether the operation state of the power supply is in a normal state or not, the troubleshooting efficiency is improved, and meanwhile, the performance index of the power supply can be known conveniently.

Description

technical field [0001] The invention belongs to the technical field of servo motors, in particular to a servo power supply. Background technique [0002] The mainstream servo drives all use digital signal processors as the control core, which can realize relatively complex control algorithms and realize digitization, networking and intelligence. Power devices generally adopt the drive circuit designed with the intelligent power module as the core. The IPM integrates the drive circuit, and has fault detection and protection circuits such as overvoltage, overcurrent, overheating, and undervoltage. A soft start circuit is also added to the main circuit. In order to reduce the impact on the driver during the startup process. The power drive unit first rectifies the input three-phase power or mains power through a three-phase full-bridge rectifier circuit to obtain corresponding DC power. After the rectified three-phase electricity or mains electricity, the three-phase permanen...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a servo power supply, which solves the problem that the current servo power supply has a good current processing effect during use. However, during long-term use, the current servo power supply has It is inconvenient to detect after a fault, making it impossible to test the problem through direct operation, resulting in greater difficulty in the troubleshooting process and time-consuming, making the corresponding controlled equipment unable to operate normally for a long time

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