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Tom7227 7th October 2012 02:04 AM

Help w/ Class D driver
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I am working a DC Audio 12K amp, tring to get a handle on the problem. The amp isn't in protect, all rail voltage are there. No oscillation...

Has any body seen this type of class d driver board, or could possible help identify the IC that are ground off,

Thank You

timwebb 7th October 2012 02:37 AM

ive never seen that. can u get any voltages off the pins of those ic's?

whizgeek 7th October 2012 10:45 PM

look like mosfets.
If theres a number of pins connected together ie. 3 then they are probably single devices.
If there a 2 x 2pins connected, they are probable dual

Perry Babin 8th October 2012 02:24 AM

It's likely 2 op-amps (or one op-amps and one comparator) and a driver IC like the IR2184S.

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