1. IGBT Fault Diagnosis & Technical Support Conduct fault analysis and diagnostics for IGBT components used in UPS and power modules, identify failure mechanisms, and propose repair solutions. Utilize diagnostic tools such as double-pulse test platforms, infrared thermal imaging, and SEM (scanning electron microscopy) to locate faults and determine root causes. Analyze the interaction between IGBT failures and drive/protection circuits, supporting system-level troubleshooting. Handle IGBT fault cases in data center power modules, addressing issues such as thermal aging under high power density and insulation resistance degradation due to coolant contact. Provide recommendations on IGBT selection and performance evaluation tailored to data center requirements, including overload capability, EMC compliance, and low-temperature startup characteristics. Collaborate with UPS system teams to optimize protection logic and response mechanisms related to IGBT failures. Guide external vendors on repair processes (e.g., re-soldering temperature control, silicone gel insulation treatment) to ensure repaired modules meet data center reliability standards. 1. Technical Expertise Over 8 years of experience in IGBT R&D, testing, or fault diagnosis for UPS or power modules. Proficient in mainstream IGBT models (e.g., Infineon FF450R12ME4, onsemi NGB1200XX series), including electrical characteristics and failure mechanisms. Skilled in diagnostic tools and methods such as double-pulse testing, thermal imaging, and SEM analysis.
