| grechejr |
For the quasi IRF amp !
regards
francisco |
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| edl |
Hi,
There is no need for stabilized power supply for that project.
Simply use a transformer/rectifier/capacitor supply.
Regards, |
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| Danko |
| Are there any disadvantages of using a stabilized SMPS for power amplifiers? Or it's just doesn't needed? |
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| odnaizutra |
| i think the best way to stabilize it is using pins 1 and 2 of 3525 conected via optocouplers to +- trackings and given 10 pecent more voltage to keep voltage constant. |
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| Eva |
| quote: | Originally posted by Danko
Are there any disadvantages of using a stabilized SMPS for power amplifiers? Or it's just doesn't needed? |
It's usually advantageous to use a regulated SMPS, but it's not a trivial job to produce an "audio-grade" +/-85V 20A SMPS. |
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| odnaizutra |
Hi,Eva.
some days ago i was having problems with my dc-dc converter 12v to 140v single supply using 3525,4427, 6 pairs of irf3205 .Reading some of your posts,i discovered the problem.
When the voltage reach 140v,the opto coupler put pin 2 to 0volt , and as you said the minimum voltage was 0.5v.The insertion of a resistor solved the pro.
Thanks Eva .
:cool: |
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