Resources and frequently asked questions
Datasheet for the Infinity Sensor V2, updated 11 November 2022
Altium library file, updated 30 August 2022
Matlab code, updated 25 July 2024*
This is the code that we use to integrate the sensor output and to correct the offset prior to integration. Correction of the offset eliminates an unwanted slope in the current measurement. The code is annotated to help you port it to your preferred platform. Using this type of postprocessing is not strictly necessary, you can also do this directly on most advanced oscilloscopes. Offset is introduced in different parts of your measurement system, and to eliminate this we use a combination of this code, the choice of a short measurement window, and, where possible, the averaging of multiple measurement waveforms. See the V2 datasheet for more information.
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*Please note that in V2.0 (25/7/24 update), the order of the output variables is swapped relative to V1.0 (this is the only change). If you are already using V1.0, you will need to modify any code that calls the function, in order to swap the order of the output variables, or to call it with only one output variable if you only need the processed data.
How do I get hold of Infinity Sensors for my own work?
Please go to Services where we explain how to purchase samples.
The Infinity Sensor V2 does not meet my requirements, what shall I do?
Please either ask on the forum, or get in touch, and we can discuss the design of a bespoke sensor for your needs.
Useful publications that use Infinity Sensors
If you use Infinity Sensors, and would like us to list your paper here, please get in touch.
2024
Infinity Gate Sensor’: a Differential Magnetic Field Sensor for Measuring Gate Current of SiC Power Transistors, PCIM'24
Accelerated Power Cycling of GaN HEMTs using Switching Loss and Fast Temperature Measurement, PCIM'24
Suppression of Oscillations in a SiC Bridge-Leg using a Custom Single-Chip Digital Active Gate Driver with 2×255 Strength Levels, PCIM'24
Instrumentation Requirements for Fast 130 V/ns Switching of 1700 V, 35 mΩ SiC MOSFETs, PCIM'24
2022
2021
Investigating GaN power device double-pulse testing efficacy in the face of VTH-shift, dynamic Rdson, and temperature variations, APEC'21
2020
Full custom design of an arbitrary waveform gate driver with 10-GHz waypoint rates for GaN FETs, IEEE Transactions on Power Electronics
Fast temperature sensing for GaN power devices using E-field probes, COMPEL'20
2019
Direct approach of simultaneously eliminating EMI-critical oscillations and decreasing switching losses for wide bandgap power semiconductors, IEEE Transactions on Power Electronics
2018
Infinity sensor: Temperature sensing in GaN power devices using peak di/dt, APEC'19
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