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Old 5th September 2007, 03:02 PM   #1
G4ME is offline G4ME  United States
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Default Class D project

Okay, I am new to the field of Class D but I am looking to start a project and looking for some advice. I am wanting to build a full band amplifier that can output about 50 watts. For simplicity I was thinking of just doing a half bridge and then expanding to full bridge after I get a little experience.

Now I have the theory down for Class D. I want to say I have the front end constructed, with a triangle generator, comparator and a pre-filter and a few inverters as gate drives and delay.

My question is what is good output MOSFET that I should be looking at? I have seen a few from Vishay, but other then power dissipation and max current I don't really know what too look for. Also I am not looking to do surface mount so any TO220 or any other package that is relatively easy to work with,

Thanks for any input you guys have.
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Old 7th September 2007, 07:07 AM   #2
fumac is offline fumac  China
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is not hard to make a 50w damp
vds >80v
Ids>10A
low rds
low Qg
if u find a low rds fet, u can use smd-mosfet, just need a mini heatsink


best rg

fumac
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