DISRUPTIVE METHOD FOR DIAGNOSING THE STATE OF HEALTH OF POWER ELECTRONICS DEVICES

Current methods for monitoring the health status of power semiconductor components, in real time, in operating electronic equipment, are very complex and therefore expensive to implement. Thanks to the discovery of a new unique temperature-independent aging indicator it has now become very simple and economical to diagnose the state of health of these components. The result is a drastic reduction in the cost of maintenance that opens the way to new fields of application previously unthinkable.

Applications

• Predictive maintenance of power electronics equipment
• Electric vehicles (car, train, metro,...)
• Renewable energy converters
• Switching power supply
• Electric energy converters
• Variable speed drives

Competitive advantages

• Unique and temperature-independent aging indicator
• Real time and in operation monitoring method.
• Robust, easy and low-cost implementation with only two electric sensors
• High precision, more sensitive than the «Vce indicator» method
• For discrete components and semiconductor modules (such as IGBT and power diodes)
• Detection of the most observed degradations related to chip
• interconnections such as bonding wires and die-attaches

Intellectual property

Patent application filed in 2021 WO2023/094205

Keywords

Aging indicator - State of health diagnostic - Temperature independent - IGBT, diode - Semiconductor Power Devices - Predictive maintenance