Electronics > Projects, Designs, and Technical Stuff
High frequency MOSFET Driver
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Saitama:
Hello! I have 2xG4PC50FD in half bridge configuration and a low power signal that needs to drive the IGBT. I looked everywhere and couldn't find any MOSFET driver ICs, so I want to make drivers from transistors (I have BD136 and BD139 in mind), but the problem is that the drivers need to operate at high frequency, from 100KHz to 400KHz and I don't know if this will work.

Is this good enough?
Marco:
What's wrong with existing gate drivers? You're going to need dead time and a bootstrap for the high side ... easier to just  use an IC.
capt bullshot:
For switching the IGBTs fast enough, you'd want transistors that are rated for maybe 4 Amp collector current. BD136 / 135 aren't strong enough. Diodes and others make special NPN / PNP pairs for this purpose.

https://www.diodes.com/products/discrete/bipolar-transistors/special-function-transistors/gate-driver-transistors/
Saitama:
I couldn't find any Mosfet Driver ICs in my country.
SiliconWizard:
Yeah, not sure why you would bother designing a discrete driver here...

MC33153, $2
(there are many others)

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