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Power Electroni...

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  • Question 1
    1 / -0

    For a SCR the maximum rms on-state current is ‘I’. If the SCR is used in a resistive circuit for a rectangular wave with conduction angle of 90°. Calculate the average and rms currents, respectively.

  • Question 2
    1 / -0

    An SCR is connected in series with a 50 Ω resistor and a 0.5 H inductor, across a 250 V, DC supply. If the width of the firing pulse is 50 μs, at what value of the latching current will the SCR be triggered? (Assume ex ≈ 1 + x)

  • Question 3
    1 / -0

    An SCR has half cycle surge current rating of 2400 A for 50 Hz supply. It’s one cycle surge current and I2t rating respectively are

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