Replacing IGBT's with MOSFET's on STEVAL-IHM003V1

[bsaleh]

Posted on December 29, 2006 at 06:09

Replacing IGBT's with MOSFET's on STEVAL-IHM003V1

[bsaleh]

Posted on December 03, 2006 at 20:43

Hello,

Would anybody recommend a type of MOSFET that would be suitable to replace the IGBT's with on STEVAL-IHM003V1 power board? I want to run my power board with an input of 15 volts which cant be do without replacing the IGBT's with MOSFET's.

Thanks in advance

Regards

[sisto]

Posted on December 29, 2006 at 06:09

The IGBT is an hybrid device which tipically integrate a bipolar transistor to drive a power ''N'' MOS.

This solution concurs to reduce the input capacitance to obtain an high speed power device.

The value of input capacitance of a power Mos is inversely proportional to RDS_ON; that means high current device == high input capacitance and consequently low speed (and maybe high temperature to dissipate).

So it depends on your application: if You need speed and power You must use IGBT.

In any case You must see the board STEVAL schematic for actual IGBT command logic and evaluate the compatibility for a direct gate MOS command.

Sixtus

:)