Käyttäjän TBag1 profiilikuva
@TBag1
Maan Serbia lippu Vladicin Han, Serbia
Jäsen alkaen 22. helmikuuta 2014
0 Suositukset

TBag1

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There are no big problems , there are only solutions which are not good enough. Any further support for job I accept to work on is assumed (free of charge) if its needed for same design. One of best achievements i made is wireless charger (15W on 2-5cm distance) and i released it one year before Nokia made and released 5W wireless charger for its phone. This project is improved up to 100W now. Also my big personal achievement is audio D class amplifier with zero negative feedback but with ultra linear response and amazing performance. I have developed new type of brushless motor too where efficiency is above 98%. Also i developed new modulation scheme for D class amplifiers,power supplies,DC-DC converters and inverter designs which can increase efficiency without quality loss. For same concept i developed OVC protection which makes this devices bulletproof and also i have found new way to make TO220 FETs to work on high frequencies without ringing on high power nodes.
$30 USD/hr
2 arvostelua
2.4
  • 50%Suoritetut työtehtävät
  • 100%Budjetin mukaisesti
  • 100%Ajallaan
  • N/AUudelleenpalkkaamisaste

Portfolio

Viimeaikaiset arvostelut

  • käyttäjän Matthew C. kuva Project 17249258 has been deleted $155.00 USD

    “project was cancelled but freelancer was knowledgeable and thru our communication i could tell he was very skilled with electronics and magnets.”

  • käyttäjän Ryan K. kuva Electrical Design $166.00 USD

    “wow ..very helpful..chatted with me for 2 hours probably longer than it took to draw up my design..will use again”

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