Automatically-regulated digital high power driving power supply adopting positive and negative feedback

A technology of positive and negative feedback and automatic adjustment, applied in the direction of excitation method/device, etc., can solve the problems of high production cost and complex structure, and achieve the effect of long-term stable work, high frequency response, and stable output voltage waveform

Inactive Publication Date: 2015-02-04
SUZHOU YOURUI TESTING TECH
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Positive and negative feedback circuits in the prior art u

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  • Automatically-regulated digital high power driving power supply adopting positive and negative feedback

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[0020] The following describes the embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The following embodiments described with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

[0021] The technical scheme of the present invention will be further described in detail below in conjunction with the accompanying drawings:

[0022] The system structure diagram of the present invention is as figure 1 As shown, an automatic adjustment digital high-power drive power supply adopting positive and negative feedback, including a rectifier filter module, a regulated DC power supply module, an auxiliary power supply, a CPLD digital control module, an inverter boost module, a positive and...

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Abstract

The invention discloses an automatically-regulated digital high power driving power supply adopting positive and negative feedback, which comprises a rectifier filter module, a voltage-regulating DC power module, an auxiliary power supply, a CPLD digital control module, an inversion step-up module, a positive and negative feedback circuit and a comparator, wherein the rectifier filter module, the voltage-regulating DC power 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 connected with the CPLD digital control module via the feedback module and the comparator connected in sequence. Based on a CPLD digital control mode, stable power output under operation of long time can be ensured; the auxiliary power supply VIPer22A based on a VIPer22A converter and a high-frequency power transformer is adopted, and output voltage is stable and has no large peak; and the frequency response is high, the control is accurate, the output current has small ripples, and a laser can be ensured to work stably for a long time.

Description

technical field [0001] The invention discloses an automatic adjustment digital high-power driving power supply adopting positive and negative feedback, 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 s...

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Application Information

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IPC IPC(8): H01S3/09
Inventor 陈春旭张金民
Owner SUZHOU YOURUI TESTING TECH
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