Quick MOSFET driver question

[Pepsiiuk]

Hi all,

I'm currently designing a 24 VDC motor driver using two low side IPB009N03L (Infineon) in parallel. However, I'm having a slight problem with the MOSFET driver circuit; in particular the gate drive voltage. I would like to use a optocoupler gate driver like the ZXGD3003E6 powered from the 24V supply but the gate voltage will be 24V which exceeds the maximum for the MOSFETs.

Can any one suggest a way around this, I can not seem to find any gate drivers with a fixed 10V drive voltage and I don't really want to have to create a separate supply for it.

All the best.
Mat

 

[ronsimpson]

Use a 12 volt regulator to drop the 24 V to 12 V for the MOSFET driver.

 

[ronv]

If that's the only thing you need 12 volts for I think you could get away with a zener regulator. Use a ceramic cap along with a good electrolytic for the filter.