Hi guys first of all this is only my 3rd post here, i've been a (very) silent but loyal reader here 😀
and i'm not a native speaker so bear with me..
here goes,
i just bought 2 pieces of Sanwu blue board clone (monoblock tpa 3118) mostly because they're dirt cheap and i've read rave reviews about them relative to their price and size
now i need the power supply to.. well supply power to them 😀
the easiest way would be to just bought a switcher be it a meanwell clones (which is unreliable to say the least) or a laptop brick supply.
"real" meanwell, omron, or astec are way out of my budget and i don't feel like spending too much for this little side project
now i happen to have 2 identical smallish transformers, it's a center tap with multiple secondaries on it and i think its capable for about 3 amp on the highest tap (35 Vac). i'm thinking of using one for each board.
and i also have a regulated power supply board which based on a linear regulator with pass transistor but it's different than any schematic i found on the net
this is the schematic for the pcb that i have
is that usable or should i just forget it and use this instead
the buck converter would be one of those xl4016 based module with 8A 200watt maximum output, more than enough to power one board or even two
so what do you guys think?
it's a cheap and cheerful project and like i said i don't want to spend too much on it (my SymAsym still needs a lot of TLC), and besides i already have most of the parts for the two plans above except the buck converter which is cheap enough.
and i'm not a native speaker so bear with me..
here goes,
i just bought 2 pieces of Sanwu blue board clone (monoblock tpa 3118) mostly because they're dirt cheap and i've read rave reviews about them relative to their price and size
now i need the power supply to.. well supply power to them 😀
the easiest way would be to just bought a switcher be it a meanwell clones (which is unreliable to say the least) or a laptop brick supply.
"real" meanwell, omron, or astec are way out of my budget and i don't feel like spending too much for this little side project
now i happen to have 2 identical smallish transformers, it's a center tap with multiple secondaries on it and i think its capable for about 3 amp on the highest tap (35 Vac). i'm thinking of using one for each board.
and i also have a regulated power supply board which based on a linear regulator with pass transistor but it's different than any schematic i found on the net
this is the schematic for the pcb that i have
is that usable or should i just forget it and use this instead
the buck converter would be one of those xl4016 based module with 8A 200watt maximum output, more than enough to power one board or even two
so what do you guys think?
it's a cheap and cheerful project and like i said i don't want to spend too much on it (my SymAsym still needs a lot of TLC), and besides i already have most of the parts for the two plans above except the buck converter which is cheap enough.
