Digital high-power drive power supply implementation method

A technology of driving power supply and implementation method, which is applied in the direction of excitation method/device, output power conversion device, electrical components, etc. It can solve the problems that the stability of laser driving power supply cannot be solved well, and achieve output current ripple The effect of small wave, precise control and long-term stable work

Inactive Publication Date: 2015-02-18
SUZHOU YOURUI TESTING TECH
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  • Abstract
  • Description
  • Claims
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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.

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  • Digital high-power drive power supply implementation method

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Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0024] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0025] The schematic diagram of the system structure of the present invention is as figure 1 As shown, the implementation method of the digital high-power drive power supply, the specific steps include:

[0026] Step 1. Rectify and filter the 220V AC power supply to generate 310V DC voltage;

[0027] Step 2. Stabilize the 310V DC voltage that has been rectified and filtered in Step 1. The processed DC voltage ...

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Abstract

The invention discloses a digital high-power drive power supply implementation method. The method includes: performing rectifier filter on a 220V-alternating-current power supply to generate 310V-direct-current voltage; performing voltage stabilizing treatment on the 310V-direct-current voltage, wherein the direct-current voltage after treatment includes two grades, namely 12V and 5V which are respectively used for digital control and feedback control; acquiring feedback signals outputted by a load; comparing feedback signals acquired in the step 4 through a comparator; inputting results acquired by the comparator into a CPLD (complex programmable logic device) digital control module; outputting control commands by the CPLD digital control module; inputting the control commands in the step 6 into an inverter booster module which outputs control current to control the load to run. Based on the CPLD-based digital control mode, 10kb / s control pulse can be achieved in laser processing, and slope engraving and small-character engraving can be well implemented. The method is high in frequency response, accurate in control, small in output current ripple and capable of guaranteeing long-term and stable operation of a laser.

Description

technical field [0001] The invention discloses a method for realizing a digital high-power driving power supply 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 compressed gas coaxial wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/42H01S3/09
CPCH01S3/09H02M5/42H02M1/0012
Inventor 王蕻张金民
Owner SUZHOU YOURUI TESTING TECH
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