Digital large-power driving power supply loaded with surge protection circuit

A technology for surge protection and driving power, which is applied in the conversion equipment of intermediate conversion to DC conversion, etc., can solve the problems of insufficient stability of laser driving power, increased circuit design cost, complex structure, etc. Achieve the effect of small output current ripple, long-term stable operation and high frequency response

Inactive Publication Date: 2015-03-04
SUZHOU YOURUI TESTING TECH
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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.
At the same time, in the traditional circuit structure, in order to achieve

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  • Digital large-power driving power supply loaded with surge protection circuit

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[0020] The embodiments of the present invention are described in detail below. 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 solution 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, a digital high-power drive power supply loaded with a surge protection circuit, including a rectifier filter module, a surge protection circuit, an auxiliary power supply, a CPLD digital control module, an inverter boost module, a feedback circuit and a comparator;

[0023] Th...

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Abstract

The invention discloses a digital large-power driving power supply loaded with a surge protection circuit, which comprises a rectifier filter module, a surge protection circuit, an auxiliary power supply, a CPLD digital control module, an inverter voltage boosting module, a feedback circuit and a comparator, wherein the rectifier filter module, the surge protection circuit, the auxiliary power supply, the CPLD digital control module and the inverter voltage boosting module are sequentially connected; and the inverter voltage boosting module is also connected with the CPLD digital control module via the feedback module and the comparator connected in sequence. The digital large-power driving power supply loaded with a surge protection circuit can be competent for control pulses at 10kb/s in the case of laser processing according to the CPLD-based digital control mode, and stable power output under work for a long time can be ensured; the auxiliary power supply based on a VIPer22A converter and a high-frequency power transformer is adopted, waveform of output voltage is stable, and no large peaks exist; and the frequency response is high, the control is accurate, output current has little ripples, and the laser can be ensured to work stably and for a long time.

Description

technical field [0001] The invention discloses a digital high-power driving power supply loaded with a surge protection circuit, 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 compresse...

Claims

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Application Information

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IPC IPC(8): H02M5/44
CPCH02M5/44
Inventor 陈春旭张金民
Owner SUZHOU YOURUI TESTING TECH
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