what sort of mosfet or igbt can handle this

Discussion in 'Power Electronics' started by pager48, May 13, 2019.

  1. pager48

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    Last edited: May 13, 2019
  2. ronv

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  3. pager48

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    High voltage MOSFETS cost much more than IGTBs for similar voltage.
     
  4. shortbus

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    You'll never get far asking him questions. Personal experience.
     
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  5. ronv

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    Last edited: May 14, 2019
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  6. ian field

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    IGBTs are slow because the output structure is an emitter follower.
     
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  7. pager48

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    That is a decent part but going obsolete not even found on digikey.

    From the switching waveforms whats the minimum voltage and current curves needed in SOA for a device?
     
  8. ronv

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  9. pager48

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  10. ronv

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    DC.
    You IBGT is much hotter due to it's Vce drop.
     
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  11. pager48

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    IGBTs do get much hotter but they are less expensive at higher voltages past the max voltage of the part you liked which is a very decent part. I should obtain it since its going obsolete and its cost is likely going decrease.

    Wouldn't the required SOA be only 7amps for about 20uS?
    img2.png
     
  12. ronv

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    All I know from your picture is that the maximum current is 7 amps and the blocking voltage is 430 volts.
    I'm sure you know more since it's your circuit.
     
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