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Thread: Gate drivers

  1. #1
    New Member New Member Gyro Gearloose is on a distinguished road
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    Gate drivers

    What gate drivers can be used for CoolSiC mosfet devices?

  2. #2
    Beginner Beginner SiCguru is on a distinguished road
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    CoolSiC MOSFETs are fast-switching AND high-voltage devices, whose common mode transients (CMT) can reach and exceed 50 V/ns. Higher switching speed requires higher gate drive current as well as well-matched delays and accurate timing.
    CoolSiC MOSFETs may need a negative gate voltage or a Miller clamp. In addition, CoolSiC MOSFETs may need faster short-circuit protection as their short-circuit withstand time is smaller than with traditional IGBTs.
    In case short-circuit capability is not required, higher gate voltage may be utilized to reduce RDSon.

    Furthermore you can find a table with the respective gate drivers on the web page under: https://www.infineon.com/cms/en/prod...d-gate-driver/

  3. #3
    New Member New Member Fränce is on a distinguished road
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    Hi,
    you mentioned the accurate timing in the gate driver. Why is this important?

    Thanks!
    Fränce

  4. #4

    Infineon Employee
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    electricuwe is on a distinguished road
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    Hi,

    the accurate timing is especially important when you are using high switching frequencies. If there are to large tolerances in timing this will require large deadtime/interlock delay time, which has negative impact on the control design. Furthermore large deadtime will lead to longer body diode conduction time which has negative impact on efficiency (with both switches of a halfbridge provided with exactly matching gate signals, synchronous rectification will take place all the time).

    Best regards,

    electricuwe
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  5. #5

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    Olaf Bendix is on a distinguished road
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    Hi,

    the Infineon gate-driver you can find under following link: https://www.infineon.com/cms/de/prod...te-driver-ics/

    If you scroll down a bit, you can find a big selection table. Here you can select corresponding your search options, like CooSic, Application, configuration,...

    So far you click on the corresponding areas, you will find your gate-driver according to your whishes. Hope it helps
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  6. #6
    New Member New Member diplo777 is on a distinguished road
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    thank you for sharing this. This is really helpful. party bus tampa

  7. #7
    New Member New Member bountifultreeservice is on a distinguished road
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    Quote Originally Posted by Olaf Bendix View Post
    Hi,

    the Infineon gate-driver you can find under following link: https://www.infineon.com/cms/de/prod...te-driver-ics/

    If you scroll down a bit, you can find a big selection table. Here you can select corresponding your search options, like CooSic, Application, configuration,...

    So far you click on the corresponding areas, you will find your gate-driver according to your whishes. Hope it helps

    Thanks for sharing this information. I don't know too much about gate driver ics. The linked you shared is helpful.

    Thanks and keep good luck.

    Ben,
    bountifultreeremoval.com

  8. #8
    New Member New Member charlesshawntree is on a distinguished road
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    IHow really important the accurate timing? I'm just curious, hope you can explain it to us.


    -Shawnee Tree care Company

  9. #9
    New Member New Member nadalbay123 is on a distinguished road
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    gate driver

    Hi, i did not know much about the gate driver but after reading this and going through the comments, i am a bit more confident on the subject.

    Thanks Dean @ Plasterers Bournemouth
    Last edited by nadalbay123; Today at 04:31 AM.

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