Digital high power driving power supply based on low power consumption rectifier bridge

Abstract

The invention discloses a digital high power driving power supply based on a low power consumption rectifier bridge, which comprises a low power consumption rectifier bridge, a voltage-stabilizing DC power supply module, an auxiliary power supply, a CPLD digital control module, an inversion step-up module, a feedback circuit and a comparator, wherein the low power consumption rectifier bridge, the voltage-stabilizing DC power supply module, the auxiliary power supply, the CPLD digital control module and the inversion step-up module are sequentially connected; and the inversion step-up module is also connected with the CPLD digital control module via the feedback module and the comparator in sequential connection. Based on a CPLD digital control mode, slope engraving and small character engraving can be well finished. In the case of laser cutting processing, stable power output under long-time work can be ensured. The auxiliary power supply based on a VIPer22A converter and a high-frequency power supply transformer is adopted, the waveform of output voltage is stable, and no large peak exists. The frequency response is high, control is accurate, ripples of output current are small, and a laser can be ensured to work stably and in a long time.

Description

technical field [0001] The invention discloses a digital high-power drive power supply based on a low-power rectification bridge, and relates to the technical field of power supply design. Background technique [0002] Laser processing equipment has very high requirements on the power supply. The power supply is the basis for the operation of the equipment. Without a power supply, it does not mean that as long as it is a power supply, it is suitable for metal laser cutting machines. At the same time, the power supply has certain safety hazards, so it is necessary to meet the following requirements. The electric wave of the power grid is controlled between +10%--15%. Due to technical reasons, the quality of my country's power supply is insufficient. Coupled with human factors, this fluctuation range is difficult to control. [0003] Laser processing mainly uses CO, the laser beam is focused on the surface of the material to melt the material, and at the same time, the compress...

AI Technical Summary

Problems solved by technology

[0006] To sum up, the stability of the existing laser drive power supply has not been well resolved at present, and has become an urgent problem to be solved.

At the same time, most of the rectification and filtering circuits in the prior art have complex structures and large power consumption

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