I Have a small 48 volt power supply that i need to fix and the transformer is messed up, like pins ripped off of it, so i need some help identifying it. On the side it has a label that says PC Transformer Corp. with a code or something below it that reads LSPC6-1764. If this is in the wrong forum please move it. Thank you for your input!
I emailed pc transformer corp. hopefully i will get a good answer. As for what im fixing, its an atus cp8506 48volt phantom power supply.
Can any one make sense of what this means? The LSPC6-1764 is a dual 115v primary(terms 1-2 and 3-4) and a 22.5vac no load dual secondary(terms 5-6 and 7-8). Thats what the transformer company told me my transformer was!
Transformer...transformer...what transformer? Whut…you mean they didn’t want to sell you a replacement transformer? Well assuming that the unit is a PCB mount transformer…what you have is a dual bobbin transformer with dual 115 VAC primary windings and a set of 22.5VAC secondary windings. With the dual windings on the primary they have the facility/ flexibilityof placing 115 VAC (really typically 120-124VAC in most U.S. households) into either 1-2 or 2-4 winding or typically into both simultaneously, if phased properly, and powering the transformers primary. OR if the unit is to be used for foreign use at 220VAC use they would apply that to the primary windings in a series aiding hookup. {Makes the power supply more universal in its use at 115VAC or 220VAC}. Finally then they are taking a jumper between 6-7 and taking out your secondary AC voltage from pins 5 and 8…as series connected to get your supply voltage to be rectified and regulated for your 48VDC level. If you refer to DIGI Keys Tamura line of transformers http://dkc3.digikey.com/pdf/T041/1160-1165.pdf One of their product line MT2125ND-MT2129 would be in order as a replacement. If you are in Colorado, then the dual primary is of no concern to you and you could use the 115VAC single primary since no future use at 220VAC would be contemplated. The single primary winding series is from MT2229ND-MT2232ND. What you didn’t provide was the current or power rating of the transformer Which you might still find on your xformer’s label as AC current or KVA rating. The spectrum of four that I gave should encompass the typical range if you find that spec or one could hook up a 48 VDC lab supply to the load that this supply feeds and compute the current requirement pertainable in selecting the adequate power transformer….or just go for the heftiest 2232/or/2125 and give some safety/cool headroom. 73’s de Edd
I have no idea what he just said but ill go with the tamura line @ digikey the dual primary transformer. O yeah btw, that transformer is a custom one so it would be 100 dollars to make one. Also, there it no other writing on the transformer except what i had said in the post up above.
Also, here is what this is all coming out of, Outside Casing Here is a view of the insides, Inside shot Here is a view of the circutry on the front side, The transformer would actually go in the red box there. Front side circuitry Hopefully this trasnformer at digi key is the one that i need for what im working on! Here is a view of the back side of the circutry, the transformer would be in the red box, on the top side. Back Side Circuitry
