šŸŽ‰We can now proudly present the winners of the TAPAS Community Challenge 2018! šŸŽ‰
Congratulations to Team "Wireless Charging" (idea 56). We are really excited for all finalists and a really big thank you to all participants for your interest in this challenge!

We got over 200 submissions! 65 ideas got one or more TAPAS boards, 10 submissions were presentation-ready.
And now we have 5 finalists! YEAH šŸ˜ƒ The finalist's idea numbers were 40, 56, 68, 212 and 213.
What's next?
We are now preparing the next steps for you, the community. Please stay tuned!
We are working on a forum and a separate webpage. If you have any question please don't hesitate to contact us via email!

Pure sine wave motor inverter

Gallium Nitride semiconductor devices areĀ  a good alternative to Silicon semiconductors in motor inverters for variable frequency drives. Compared to traditional inverters based on IGBTs or MOSFETs theĀ  (PWM) frequency for efficient operation can be increased by a factor of 5 to 10, extending the PWM frequency range up to 500 kHz. This allows the use of motor filters with small component size. As a result, high motor efficiency, low torque ripple, high control bandwidth and nearly ideal sinusoidal output voltages are achieved. The idea is to designĀ  a sine wave filter consisting also from digital part. The filter will be optimized to achieve low power loss. A 3-phase GaN motor inverter operating at 100-200 kHz PWM frequency at 50 V DC-link voltage with sinusodal filter will be designed.

  • Kaspars Kroics
  • Mar 7 2018
  • Mar 20, 2018

    Admin Response

    This idea will getĀ aĀ TAPAS dev kit.

  • Dominic Buchstaller commented
    March 07, 2018 09:27

    Would that be different to the filter that is already on the TAPAS board?

  • Kaspars Kroics commented
    March 07, 2018 11:32

    Partly this filter can be utilized , but it can be optimized andĀ additional network to eliminateĀ  the LC-ļ¬lter resonance effects and increase control bandwidth. The main challenge lies into design of digital filter that control bandwidth.Ā 

  • Admin
    Nora Schille (TAPAS team) commented
    March 15, 2018 14:51

    Great idea! Our TAPAS team will contact you regarding a free TAPAS board shortly.

  • Kaspars Kroics commented
    March 26, 2018 18:40


  • Admin
    Nora Schille (TAPAS team) commented
    June 04, 2018 13:15

    Hi Kaspars,

    how is it going? Do you need any help regarding the realization of your project?
    Here is just a friendly reminder that submission deadline for your presentation is on 24th of June. :-)
    We are really excited to see your progress!Ā 
    Please post the progress within your idea board submission.

    PS: We want to do a community call with you! Please useĀ our doodle to find a date which fits best for you.Ā :-)

    Nora @ TAPAS Team

  • Jacqueline Hofmann commented
    June 20, 2018 12:03

    Hi Kaspars,

    Don't forget that theĀ submission deadline for your presentation is on 24th of June! We are already curious to see the results of your project :-) Keep in mind that you still have time to work on the implementation of your idea after the submission!

    Please post your project visualization and all related documents within your idea board entry :-)


    Jacqueline @ TAPAS Team

You can read the official challenge FAQ here!