Determination of Ideal Magnetic Sensor Arrangements for Health Monitoring of Power Electronic Modules
Conference: PCIM Europe 2022 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2022 - 05/12/2022 at Nürnberg, Germany
doi:10.30420/565822119
Proceedings: PCIM Europe 2022
Pages: 6Language: englishTyp: PDF
Authors:
Huai, Haosu; Naserizaker, Nasibeh; Wilde, Juergen (Albert-Ludwigs-University of Freiburg, Laboratory for Assembly and Packaging, Germany)
Wolff, Michael; Ehret, Elena; Griepentrog, Gerd (Technical University of Darmstadt, Germany)
Abstract:
In this paper, a new method of packaging failure detection based on magnetic field measurements is evaluated. Based on pre-emptive simulations, a valid area for a magneto resistive (MR) sensor placement is chosen. Next, two different sensor layout patterns are compared to each other. Based on the results, one of them is chosen and implemented into an advanced PCB to observe the magnetic field over all three DCBs inside a six-pack module consisting of three half bridges. Measurements are conducted while gradually and intentionally removing wire bonds from the middle DCB, to show the measurement boards capability to detect wire bond defects and current sharing among the remaining bond wires.