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Old 18th February 2012, 02:47 AM   #1
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Default Power Acoustic OVN1-5500D

This amp uses IRFP264N's for the outputs..

They are driven by a IR2110S ..


Wondering if this would be a good sub for the IRFP264N's

http://www.irf.com/product-info/data...rfp4229pbf.pdf

Heres the Datasheet for the IRFP264N

http://pdf1.alldatasheet.com/datashe.../IRFP264N.html

Last edited by mike49504; 18th February 2012 at 06:04 AM.
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Old 18th February 2012, 08:59 AM   #2
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They are supposed to work as a sub in some amps. You'll have to try it in that amp to see if it works. I ordered some but I haven't had a chance to try them yet.
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Old 26th February 2012, 02:29 PM   #3
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Ok I replaced the power supply fets,gate resistors, a few caps, outputs,output driver ic..


Amp powers up and idles good and produces audio but it also has a chrip thru the test speaker as well to the beat of the music..


3 out of the 6 outputs get warm..


Any ideas on what to check next?
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Old 26th February 2012, 07:35 PM   #4
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I've used those as subs in two power acoustik amps I've recently done, they both work fine, YMMV of course.
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Old 26th February 2012, 11:09 PM   #5
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Driver IC?

Is it the high-side or low-side FETs that are getting hot?
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Old 26th February 2012, 11:56 PM   #6
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Ok i cant think tonight at all..


How do i tell which is the high side and which is the low side on the outputs?
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Old 27th February 2012, 12:35 PM   #7
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The high side will have its source leg connected to the output filter inductor. The low side will have it's drain connected to the output filter inductor.
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Old 27th February 2012, 11:27 PM   #8
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The low side fets are heating up
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Old 28th February 2012, 11:45 AM   #9
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What is the DC voltage on the driver if you place the black probe on pin 2 and the red probe on pin 3?
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Old 28th February 2012, 11:00 PM   #10
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If your refering to the IR2110S then i have 13.95 volts Black probe pin 2 red probe pin 3
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