🎉We can now proudly present the winners of the TAPAS Community Challenge 2018! 🎉
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 😃 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!

Isolated Gate Driver Without External Power Supply

An MOSFET/IGBT based inverters required gate driver circuit to feed gate pulse from micro controllers into high voltage side. low voltage and high voltages must be isolated to avoid short circuits. an isolation circuit required separate voltage source for gate drive. A new design simplify the isolation and driver circuits. Micro controller TTL long pulse can be given into oscillator power (UJT relaxation oscillator), output of oscillator will fed into pulse transformer primary. Output from secondary of transformer is rectified and feed into Gate pulse of MOSFET/IGBT. Pulse transformer ratio can be canned to meet-out minimum gate voltage and the output is fully isolated without external power supply. This will reduce the cost of inverter design.   

  • Manikandan R
  • May 25 2018
  • Arun Ashok commented
    May 28, 2018 09:35

    Hi Manikandan,

    Thank you for your interest. Unfortunately the challenge is open only to participants from EU.

    If you are from the EU , i request you to submit detailed schematics, motivation behind the idea and how you think the idea fits in the challenge.

    Best Regards,

    Arun Ashok

  • Manikandan R commented
    May 28, 2018 14:07

    Dear Arun,
    Kindly reply the abbreviation of EU.

    Thanks and Reg,
    Dhirajlal Gandhi College of Technology
    Salem, TamilNadu, India

  • Susanne Forster commented
    May 29, 2018 09:09

    Dear Manikandan,


    the challenge is limited to the EU (European Union). A list of countries can be found here: https://europa.eu/european-union/about-eu/countries_en


    Best regards,

    Susanne @ TAPAS team

You can read the official challenge FAQ here!