A gas laser thyristor power supply

Abstract

The invention provides a thyristor power supply of a gas laser. The thyristor power supply comprises two ways of voltage regulating power supplies in series connection, and two three-winding transformers identical in structure and capacity are adopted, so that power factors of the thyristor power supply of the gas laser are improved effectively, a two-way twelve-phase rectifying circuit in series connection is formed by a high-voltage rectifier stack, direct-current ripples after rectification are decreased effectively, and further gas discharge is more stable.

Description

technical field [0001] The invention relates to the technical field of laser power supplies, in particular to a high-power cross-flow CO 2 The high voltage generator of the laser is specially designed for high power cross-flow CO 2 In the laser, it is used as a high-voltage excitation source for gas discharge. Background technique [0002] CO 2 Lasers are one of the most versatile gas lasers. High power CO 2 The application scope of laser processing technology continues to expand, and its position in the field of advanced manufacturing processing is becoming more and more important, and in high-power CO 2 In laser equipment, power technology plays a crucial role in the controllability, long-term operation stability, and reliability of the laser, and high-power cross-flow CO is common. 2 High voltage generators for lasers such as figure 1 As shown, the DC high voltage is generated by the AC contactor 1, the thyristor AC voltage regulating device 2, the step-up transform...

AI Technical Summary

Problems solved by technology

The disadvantage is that the higher the power of the high-voltage generator, the greater the reactive power, the more harmonic components, the lower the power factor, the greater the interference to the power grid, and the greater the high-voltage DC ripple after rectification.

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