Recent content by npedja

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  1. N

    IGBT Terminal connectors

    You don't need a copper screw for two reasons: the current flows from the incoming bar/cable to the IGBT terminal plate. The scrue must provide strong tightening force to make contact between these two uniform. So, you need a regular screw and the nut is integrated in the module, bellow the...
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    How do transient currents affect electrical equipment types?

    The car electrical system and the utility system are electrically separated from each other basically due to low electrical conductivity of tyres. Therefore, a live wire in contact with your car should not be able to induce any potential that might damage car equipment (no return conduction path...
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    Power Converter Design: Wide Input

    It is a question with many answers, including zero. It depends on power level and isolating transformer ratio. If the power level is low (below 30-50W), maybe you could try with flyback converter. Still, the problem of 20:1 input voltage range is what certainly will give you headaches, due to...
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    Looking for Information on the Miller Effect

    I believe you are interested in Miller effect in MOSFET transistor. The Miller capacitance is a drain-gate capacitance Cgd, with one end fixed at the gate and the other floating with drain terminal, in simple words. When you want to turn the mosfet on, consider the drain-side of Cgd is forsing...
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    Power Converter Design: Wide Input

    As far as I can see, this will be a very challenging task. One issue is related to input side - the input stage will oprate at high current (at 20V input) but it also must work at high voltage of 400V. Therefore, if you choose a single-stage converter, you might find yourself stuck with bulky...
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