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Old 24th February 2012, 12:34 PM   #181
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colleagues,
I'm starting on class D amplifiers and I'm based in IRS2092, but early on I've had a big problem, it worked!!
I mounted the electrical scheme of AN-1138, only changed by the FET IRF540 and my source of 50V symmetrical.
The capacitors are self-osc 1nF and resistor 500R.
I hope someone can help me.
hugs
Fernando
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Old 24th February 2012, 02:35 PM   #182
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Default IRS2092 Amplifier

My project...
Attached Files
File Type: pdf D_AMPL.pdf (105.6 KB, 569 views)
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Old 24th February 2012, 03:00 PM   #183
luka is offline luka  Slovenia
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Quote:
Originally Posted by Cuzziol View Post
colleagues,
but early on I've had a big problem, it worked!!
So, what, you don't want it to work? use hammer
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Old 24th February 2012, 03:22 PM   #184
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Luka,
Say that ic is the easiest to use, I'm disappointed, I thought it would be easy to use the IRS. But if you have another idea unless the hammer, you can post.
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Old 24th February 2012, 03:28 PM   #185
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Luka,

Only now saw my mistake of posting, sorry to all
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Old 24th February 2012, 03:35 PM   #186
Dimonis is offline Dimonis  Russian Federation
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Originally Posted by luka View Post
So, what, you don't want it to work? use hammer
A top-level jeer
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Old 2nd July 2014, 12:40 PM   #187
xslavic is offline xslavic  Moldova
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Originally Posted by luizcpimenta View Post
My project...
how much power can i get with your design?
can you post the gerber files please?
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Old 2nd July 2014, 01:00 PM   #188
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I rather fancy using an amp like this as a 50 Hz re-generator ( 230 V via output transformer). Anyone tried getting a continuous output from an amp like this?

Another related question. Some class D amps are suitable for 5V. A friend asked me to build some desk top speakers . 500 mA from USB seems too low to be useful . Then I remembered Hypex state 10 to 1 crest factor in audio amps. Maybe the 2 x 2.5 watts is realistic as the USB should tolerate slight abuse. 2.5 watts is almost OK in SE. One chip was not a million miles away from Hypex specs. No output choke used and none needed said the makers.

My plan is to make it bridge and really be naughty. I will have a beefy 5V when practical to use it.
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