High-power laser electronics

By integrating high-voltage switches and dual safety cutoffs into constant current sources, the complexity and cost of high-power laser systems are reduced, ensuring safer operation and compact design.

JP2026086558APending Publication Date: 2026-05-26IPG PHOTONICS CORP

Patent Information

Authority / Receiving Office
JP Β· JP
Patent Type
Applications
Current Assignee / Owner
IPG PHOTONICS CORP
Filing Date
2026-02-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

High-power laser systems face safety challenges due to the complexity and cost of current safety measures, which include additional switching and discharge circuits, and the impracticality of using opaque covers or mechanical shutters, along with the need for AC-DC and DC-DC converters, leading to dangerous high-voltage capacitors and multiple constant current sources.

Method used

The use of high-voltage switches, such as gallium nitride or silicon carbide transistors, eliminates the need for DC-DC converters and integrates redundant safety systems into constant current sources, reducing component complexity and cost while maintaining safety through dual safety cutoffs.

Benefits of technology

This approach simplifies the power supply system, reduces safety component complexity, and enhances safety by eliminating dangerous high-voltage capacitors and unnecessary converters, allowing for compact, efficient, and safer high-power laser systems.

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Abstract

This provides an improved laser power system with redundant safety measures. [Solution] A laser system comprising a high-voltage AC-DC power converter and one or more current sources, one or more current sources coupled to the high-voltage AC-DC power converter without a DC-DC converter between the one or more current sources and the AC-DC power converter. Each of the one or more current sources includes a high-voltage switch and one or more independent safety shutoffs. A laser module is operably coupled to one or more current sources and configured to emit electromagnetic radiation, and one or more safety shutoffs are configured to disable the emission of electromagnetic radiation from the laser module when triggered.
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