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Class D Switching Power Amplifiers and Power D/A conversion

irs3000d
irs3000d
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Old 30th April 2013, 06:07 PM   #11
Tekko is offline Tekko
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They don't, the ratings are grossly overrated as well as beeing a oneshot few millisecond pulse into the absolute minimum allowed load impedance using a lab power supply rather than a real power supply.
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Old 30th April 2013, 06:23 PM   #12
Reactance is offline Reactance  South Africa
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Quote:
Originally Posted by Tekko View Post
a oneshot few millisecond pulse into the absolute minimum allowed load impedance using a lab power supply rather than a real power supply.
isn't this refereed to burst testing .
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Old 30th April 2013, 08:10 PM   #13
Tekko is offline Tekko
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Yeah, and the burst tests are usually what manufacturers use as the power specs just to make their producs look better than they are.
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Old 30th April 2013, 09:37 PM   #14
stewin is offline stewin  Kenya
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hi nazir
i have made the ir900 and the ir4k5 both work but you have to be extra careful when soldering ,because the tracks are small.
i haven't tried the ir3000 but there are a lot of complains from diyers.

i would recommend you go with manoj,s aud600 it is powerfull and many diyers have build it including me
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Old 4th August 2013, 10:15 PM   #15
b e h n a m is offline b e h n a m
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hi
i have made IRS300 and it work nicely

i use 6k8 as Rss and test it with duble 60 & 75.
is 6k8 right resistance for this voltage ?
how can I know how much must use per diferent voltage ?

i can't find orginal mosfets then i use IRFP250
hef4049 Instead cd4049
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Old 21st June 2016, 01:03 PM   #16
herimanana is offline herimanana  Madagascar
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hi there,.

could please tel me what means OSC ? RFB ? OCP ? in the PCB layout of irs3000D ??
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Old 31st December 2017, 06:20 PM   #17
radokely is offline radokely
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oCp means overcurrent protection...rfb means resistor feedback it set the gain of the amp
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