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Class D Switching Power Amplifiers and Power D/A conversion

SI8244 / IRFB4019
SI8244 / IRFB4019
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Old 19th July 2012, 10:46 AM   #1
aligina is offline aligina
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Join Date: Oct 2009
Default SI8244 / IRFB4019

Hey there,

I'm going to build a simple class D with SI8244 as driver and IRFB4019 half bridge. Max. +-60V.
As far as I can see, it should work without gate resistors..?

Last edited by aligina; 5th August 2013 at 07:31 PM.
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Old 19th July 2012, 03:24 PM   #2
odnaizutra is offline odnaizutra  Guyana
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Join Date: Jan 2007
If i were you iŽd use a small value resistor to soft the edge of positive going of vgs .This way you reduce emi.
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Old 20th July 2012, 06:43 PM   #3
stoc005 is offline stoc005  United States
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Join Date: Feb 2007
Location: Midwest in the USA
Sure. You can go without gate resistors. But, a SMPS we designed failed EMI/RFI without 10 ohm gate resistors. Your choice.
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