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Class D Switching Power Amplifiers and Power D/A conversion

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Old 24th June 2013, 02:55 PM   #321
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Quote:
Originally Posted by stewin View Post
did you parallel outputs? please post your projects.
Nope, there's no sense in paralleling because cheap and easily obtainable P-Ch Mosfets are limited to 100V.

Here's my schem. It's not final yet.

I used parallel 2 x 0R1 5W because it's easily available.
13A flowing at 0.05W resistor has a dissipation of 8.45W so the current sense resistor rating is sufficient
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Old 24th June 2013, 06:01 PM   #322
PetruV is offline PetruV  Romania
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IS the detex audio pcb at post #259 working and usable,i am looking to make it for at 40-50volts,as it is simpler than any other amp of this power range
Parts seem easy to obtain
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Old 25th June 2013, 02:07 PM   #323
PetruV is offline PetruV  Romania
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Also need Positive pcb pdf for it,as there is only negative included,But i will try and build it soon,in a week or so if i get pdf positive,also tried searching detex audio forum,but i havent found the thread for that amp
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Old 25th June 2013, 08:06 PM   #324
stewin is offline stewin  Kenya
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nice work jlester please post the sch and the brd file in zip file
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Old 25th June 2013, 08:14 PM   #325
stewin is offline stewin  Kenya
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also
hi all good news for recycling ferrite cores

>>>>> diysmps <<<<<<<<
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Old 25th June 2013, 08:25 PM   #326
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Safer to boil the smps transformer in a pot of water on the stove.
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Old 26th June 2013, 08:36 AM   #327
PetruV is offline PetruV  Romania
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What do you think of the detex audio scheamtic?IS it working,does anybody have bottom layout in pdf?
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Old 26th June 2013, 10:02 AM   #328
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I guess no one has tried to build it yet.
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Old 26th June 2013, 10:27 AM   #329
PetruV is offline PetruV  Romania
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Being first is even better,but no way im building it too soon because i have to find board size for it so i can make pcbs (((
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Old 26th June 2013, 07:25 PM   #330
stewin is offline stewin  Kenya
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the artwork for your amp jlester especially the one with two pairs as outputs.
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