Help w/ Class D driver

Tom7227 · 7th October 2012, 02:04 AM

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.

8th October 2012, 02:24 AM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	It's likely 2 op-amps (or one op-amps and one comparator) and a driver IC like the IR2184S. __________________ Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links

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7th October 2012, 02:37 AM	#2
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	ive never seen that. can u get any voltages off the pins of those ic's?

7th October 2012, 10:45 PM	#3
whizgeek diyAudio Member Join Date: Feb 2010	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