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Suitable power device for 208VAC, 480VAC, 40A AC switching application

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meghanam
meghanam Contributor Level 1
in Discrete Products

Application : We are developing a AC switching circuit using dual MOSFET configuration. The application is for driving the 208VAC, 480VAC, 40A AC heaters to control its temperature.
1. Is it preferred to use MOSFET or IGBT for this?
2. Which MOSFET series is preferred for this application?

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  • Forum_Moderator
    Forum_Moderator Wolfspeed Employee - Contributor Level 5
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    Thank you for your post, it has been approved and we will respond as soon as possible.

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5
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    Hello meghanam,

    It depends. I'd like to ask you couple of more questions about your topology:

    1. Is this a soft-switching topology?
    2. What is your intended switching frequency?

    Thank you!

  • meghanam
    meghanam Contributor Level 1
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    Hello TBhatia,

    1. Yes, its soft switching.
    2. We are planning to use switching frequency of 5-10Hz

    Also can i get the I^2t value of TO247-4 and TO247-3 package MOSFETs , as we are looking for through hole package MOSFETs

    Regards,
    Meghana

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