Timeline for Can someone help me to find the right transformer for this power supply?
Current License: CC BY-SA 3.0
12 events
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| Jan 17, 2018 at 6:51 | comment | added | audio-engineer | I will definitely do that! Currently I am trying to source all the parts needed, but when I build and finish the project I will post the results. | |
| Jan 16, 2018 at 19:07 | comment | added | jonk | @Martin If you do find a solution different from what has been suggested here, feel free to post it as an answer and tell us what worked for you. And select it as the answer for your question. It may help others. | |
| Jan 15, 2018 at 1:30 | comment | added | audio-engineer | Thank you very much for your help, jonk! I will consider all these things and try my best to find a fitting transformer! | |
| Jan 15, 2018 at 0:12 | comment | added | jonk | @Martin For the transformers, bigger is often better. But I've already added margins for the voltage magnitudes, too be safer. But this comes at a possible unnecessary cost -- heat. Increasing the voltages further can work, as it is even more margin. But the downside is that some bjts will be dissipating even more. Just be aware of the possibility and check things out when operating, later. | |
| Jan 15, 2018 at 0:07 | comment | added | audio-engineer | Then other options are the VPP36-280 and the VPP20-2800, which are 36 V CT rated 10 VA, and 20 V CT rated 56 VA respectively. The latter one is rated quite a bit higher than you suggested. They are not as small as the ones I found earlier, but they might be the needed answer. | |
| Jan 14, 2018 at 23:26 | comment | added | jonk | @Martin The first one seems fine. The second one might be a worry, might not. 16 V CT might be a bit low. But you won't know for sure until you try, I suppose. You can always replace it, later. | |
| Jan 14, 2018 at 23:18 | comment | added | audio-engineer | Hello jonk! Thank you for you very quick and thorough reply! I also really appreciate that you redrew the schematic and did all the calculations for me! So considering all your suggestions, I ended up looking at the Triad FS36-350 and FS16-2250 transformers. The former one delivers 36 V CT and is rated for 12 VA, so it's a little bit higher that you suggested, but it should work. The latter one is a 16 V CT transformer and is rated for 36 VA, so it's a little bit lower than you suggested, but again, I think it should work. They are both small and available at Mouser, so they seem perfect! | |
| Jan 14, 2018 at 21:17 | history | edited | jonk | CC BY-SA 3.0 |
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| Jan 14, 2018 at 20:49 | history | edited | jonk | CC BY-SA 3.0 |
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| Jan 14, 2018 at 20:27 | history | edited | jonk | CC BY-SA 3.0 |
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| Jan 14, 2018 at 20:18 | history | edited | jonk | CC BY-SA 3.0 |
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| Jan 14, 2018 at 20:02 | history | answered | jonk | CC BY-SA 3.0 |