Recent content by Joshua_S

  1. J

    Converter not starting up once line input voltage connect

    Thank you for all your replies. 1. To start with, the PCB size is quite tight, so there is no much space to place the components. But, I think that there is no problem with the layout associated with the net of Line sense resistor RL. The distance between this net and the drain net is 0.8mm and...
  2. J

    Converter not starting up once line input voltage connect

    Hello guys, I have designed and built a prototype with the aid of PI Expert Designer tool according to the following characteristics: - Vinput = 85-305Vac - Voutput / Ioutput = 12Vdc / +700mAdc I also attach you the schematic of the converter, which was taken from DER-528 application note (14...
  3. J

    Enlighten me about the differences of IGBT and MOSFET please

    Hello guys, Can anybody explain the differences of IGBTs and MOSFETs? Yesterday I found an article entitled What is the Difference Between MOSFET and IGBT (http://www.apogeeweb.net/article/66.html), which theoretically explained this question to a certain degree, but still i want to ask you...
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