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Recent content by katsar

  1. K

    Need drivers for IRF840

    Hello, I'm using IRF840 mosfets and I need gate drivers for them. The project is an inverter so I found IR2101. Can IR2101 drive them? Do you any other suggestions? Thank you. IRF840: http://www.datasheetcatalog.org/datasheet/fairchild/IRF840.pdf IR2101...
  2. K

    Active Harmonic filter

    Hello. I have to desing and build for my last semester an active harmonic filter. I have desinged it in simulation and now I'm trying to make what happen in simulation real. So here is the problem. Basically many problems. I 've managed to build the control circuit. The basic concept is this: A...
  3. K

    gate driver for IRG4PH50UD

    The inverter that I'm going to built will be supplied 320VDC. For load I will use a resistor, and has to create a current reference (Iref). That's it. So I don't need to drive voltages> 600. So will this drive suits me?
  4. K

    Add dc voltage to ac signal

    Thank you very much. I will try it.
  5. K

    Add dc voltage to ac signal

    The sense resistor value is 200m?
  6. K

    Add dc voltage to ac signal

    From what I see may this isn't suitable for my project. I need negative values too. I am using the TL071CP op amp which has +-15V.
  7. K

    Add dc voltage to ac signal

    Hello I am using a current transducer for measure current from a pc. The pc's current is a about 0,5 A. So I use a current to voltage converter with op amp to turn current into voltage. But my controller needs only positive signals so I have to add a dc offset to my signal. I have the circuit...
  8. K

    gate driver for IRG4PH50UD

    Thanks for your answer. I also found another driver: **broken link removed** Is it suitable for driving those igbts?
  9. K

    gate driver for IRG4PH50UD

    Hello guys. I have a question. I have a project for my last semester. A part of this project is to build an inverter. The problem is that i don't know what gate drivers should i use for IRG4PH50UD IGBTs. Do you have any suggestions? Can you help me please...

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