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| Trasformer rating for bridge rectifier |
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| taydin:
--- Quote from: Zero999 on January 19, 2019, 09:17:06 pm ---5V at 5.25A should be no problem. https://www.meanwelldirect.co.uk/wp-content/uploads/sites/55/2018/04/r1748r1748_3.pdf How about the other voltages? Is that +/-15V? --- End quote --- Yep. All voltages are with respect to a common ground. Thanks for the link. I'll see if there is a distributor of that company here. |
| taydin:
--- Quote from: Zero999 on January 19, 2019, 09:17:06 pm ---5V at 5.25A should be no problem. https://www.meanwelldirect.co.uk/wp-content/uploads/sites/55/2018/04/r1748r1748_3.pdf How about the other voltages? Is that +/-15V? --- End quote --- Wow, I looked at this company's product offerings in detail, and there is a power supply that will satisfy almost all the requirements. The model number is QP-150C https://www.pulsar.pl/pl/karta/QP-150D.pdf This unit has the following specs: 5V, adjustable, 15A x1 +15V fixed 3A x1 -15V fixed 2A x1 -5V fixed 0.6A x1 I will only use the 5V (adjust it to 5.2V), +15V and -15V. I will obtain the +12V from the +15V using a 7812 fixed regulator. It will still be necessary to make a PCB for this, because the SA requires a line sync signal, which means obtaining a logic level 50 Hz signal that is synchronized to the mains voltage. Also, the power on switch is not standalone. It basically is a logic signal that must turn on power when it is low. I also need a "power good" signal to give to the SA. Thank you for making me aware of this company. They are very well represented here in Turkey, and the unit costs around 80 Euros. |
| mariush:
If you want to go all linear, it may make more sense to go with a +/-18v ac transformer , and use switching reg. for 15-25v dc to 5.2v |
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