Bus type carbon-dioxide laser high-frequency switching power supply

Abstract

The invention relates to a bus type carbon-dioxide laser high-frequency switching power supply. The bus type carbon-dioxide laser high-frequency switching power supply is characterized by comprising a bus, a plurality of digital signal controllers and a plurality of switching power supplies, the digital signal controllers are parallelly connected on the bus, each four switching power supplies forming a group are parallelly connected on one digital signal controller, the bus is communicated with a main controller which is used for transmitting control information to the bus, the bus is used for transmitting synchronizing signals to the digital signal controllers, and the digital signal controllers are used for transmitting pulse-width modulation signals to the switching power supplies. The bus type carbon-dioxide laser high-frequency switching power supply not only improves reliability of a voltage system and is convenient for centralized and remote control, but also enables more power supplies to be combined in use. Besides, the bus type carbon-dioxide laser high-frequency switching power supply can improve laser power supply quality and more effectively meets technological requirements of laser cutting and welding.

Description

technical field [0001] The invention relates to a switching power supply, in particular to a bus-type carbon dioxide laser high-frequency switching power supply, which belongs to the technical field of power electronics. Background technique [0002] CO2 laser is a kind of molecular laser. The main substance is CO?? molecules. Under the action of external high pressure, CO?? The wavelength is 10.6 μm. This is a very efficient laser, as a commercial model, its conversion efficiency reaches 10%, so carbon dioxide laser is widely used in laser cutting, welding, drilling and surface treatment, and as a commercial application laser can reach 45 kilowatts, which is It is the most powerful laser at present. [0003] figure 1 A schematic diagram of the laser resonance. [0004] Such as figure 1 Shown: The CO2 laser includes multiple segmented discharge tubes with high voltage, and the laser generated by each discharge tube oscillates in the resonant cavity to generate super-int...

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Problems solved by technology

[0008] like image 3 As shown: the traditional laser switching power supply generally can only produce simple continuous laser output and adjustable width square wave signal, some very effective pulses cannot be output, and several laser switching power supplies are connected by analog signals, signal interference loss Large, difficult to coordinate

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