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Class D Switching Power Amplifiers and Power D/A conversion

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Old 19th November 2009, 04:04 PM   #1
7ormore is offline 7ormore  United States
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Default Another noobie question for power mosfets

In my class d set up i'm using hexfet power mosfet IRFB23n15d for my h-bridge design powered by -/+30V. I have a separate power supply for the rest of my circuit (comparator,ir2111,etc.). My question is when i turn on just the power mosfet section only i'm getting a huge power loss,as if the mosfets are all on.

http://www.irf.com/product-info/data...s23n15dpbf.pdf

this is a link to the mosfets i am using

I have tried using shotcky diodes across the mosfets, however it didn't work.
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Old 19th November 2009, 04:50 PM   #2
7ormore is offline 7ormore  United States
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Nevermind I got sold some bad mosfets
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