UnitedSiC Launches Version 2 of FET-Jet Calculator, Reaching New Heights in Performance

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UnitedSiC Launches Version 2 of FET-Jet Calculator, Reaching New Heights in Performance [Copy link]

When it comes to power design, choosing the right parts can be tricky and sometimes downright frustrating. For SiC FETs and SiC Schottky diodes, the FET-Jet Calculator (2nd Edition) takes the guesswork out of designing. Read this blog post to learn more about this flexible and easy-to-use tool that helps you select devices and see their performance, so you can get your designs right the first time, quickly and accurately.

This blog post was originally published by United Silicon Carbide (UnitedSiC), which joined the Qorvo family in November 2021. The addition of UnitedSiC, a leading manufacturer of silicon carbide (SiC) power semiconductors, enables Qorvo to expand into fast-growing markets such as electric vehicles (EVs), industrial power supplies, circuit protection, renewable energy, and data center power.

If you haven’t found the right part yet, UnitedSiC’s free web-based FET-Jet calculator can provide inspiration and help you select the right SiC FET and SiC Schottky diode for your power design needs. Simply select the AC-DC or DC-DC converter topology you want to use, either isolated or non-isolated, from the drop-down menu. Then, switch between continuous, critical or discontinuous mode automatically and seamlessly. Simply set the input, output and required power, and select from the range of SiC FETs and Schottky diodes available from UnitedSiC. The tool instantly calculates overall efficiency, component losses (split into dynamic and conduction losses), and current stress levels. You can even specify parallel devices, multiple converter “legs” and external heat sink performance to predict junction temperatures.

The new Version 2 calculator further simplifies the SiC FET and Schottky diode selection process and doubles the number of selectable topologies to 26 converter types.

In version 2, losses and temperature rise are presented as bar graphs for immediate visualization of conduction losses, turn-on losses, and turn-off losses. A very useful new feature is the provision of gate resistor RGon and RGoff recommendations for different devices and drive voltages, as well as recommended snubber component values for optimized voltage overshoot control.

New topologies in the calculator also bring some additional options. For example, for the complex "Three-level ANPC voltage source inverter" topology in the AC-DC area, the calculator supports the selection of PWM strategies: LF middle, HF middle and Max ON, and there are three modulation schemes to choose from: sine-triangle wave, space vector and 60° discontinuous PWM. The number of parallel devices and the number of branches/phases in some topologies can be increased without limit. Try clicking on the quantity and see the dynamic change of the bar graph to understand the advantage and the trend of losses and temperatures. Don't worry, if the selection is invalid, a warning prompt will appear in the computer. Other new features include: link to the part marking decoder, indicative waveform diagrams, and the option to download the calculator results as a PDF file for your records.

The FET-Jet Calculator (Version 2) tool has been improved to quickly view the performance of selected devices, helping you choose the right device and finalize your design quickly and accurately the first time. The tool is regularly updated with the latest parts from UnitedSiC, including 4th generation SiC FETs with excellent performance in hard-switching and soft-switching topologies. We know what you need and can also let engineers choose extreme combinations, such as: designing 50 branches and 1000 FETs in parallel in a boost converter. No registration is required, please enjoy it!

FET-Jet Calculator (2nd Edition): A magical tool for selecting SiC FETs and SiC Schottky diodes, making power design easy and accurate!