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Class D Switching Power Amplifiers and Power D/A conversion

Need good DC protection circuit for Class D
Need good DC protection circuit for Class D
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Old 19th January 2011, 02:28 PM   #1
opor is offline opor  Thailand
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Join Date: Nov 2005
Default Need good DC protection circuit for Class D

I never success to build DC protection which is normally use with AB amp with class D amp. I found that those circuits did not work at high level out put from D amp. Is there any good circuit?
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Old 20th January 2011, 12:35 AM   #2
nigelwright7557 is offline nigelwright7557  United Kingdom
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Location: Carlisle, England
Are you sure you need protection with a class d amp ?

I use an IRS2092 based class d amp and that has protection built in.
Click and pop suppression.
It also resets if the MOSFET takes too much current, i.e. short on output.
If all the power supplies dont come up it wont start.
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