A Generic Isolated Energy Probe for High-Side Switching Loss Measurement
Journal
2025 IEEE Energy Conversion Conference Congress and Exposition, ECCE 2025
Start Page
1-6
ISBN (of the container)
979-833154130-9
Date Issued
2025-12-03
Author(s)
Huang, Chi-Yuan
Abstract
High-side switching loss measurements in power electronics are often challenging due to grounding limitations, bandwidth constraints, and high instrument costs. This paper proposed an isolated energy probe that enables isolated voltage and current measurement while maintaining compatibility with standard oscilloscope. By combining an analog multiplier and an integrator to calculate the switching energy loss, along with an isolated amplifier to transfer the measured switching energy signal from the device under test to the oscilloscope, the proposed isolated energy probe overcomes the bandwidth and grounding challenges of a standard mains earth grounded oscilloscope in high-side switching loss measurement. Experimental validation using a double pulse test confirms the accuracy of the proposed isolated energy probe. This cost-effective solution improves power semiconductor switching loss measurement, particularly for GaN, SiC, and IGBT device testing.
Event(s)
17th Annual IEEE Energy Conversion Conference Congress and Exposition, ECCE 2025
Subjects
High-side
Isolated Measurement
Switching Loss
Publisher
IEEE
Type
conference paper