spikey1973
- Jul 16, 2014
- 32
- Joined
- Jul 16, 2014
- Messages
- 32
oke.. i have a small problem that is difficult to explain but i try anyways.
i have a power supply with VAC input (230v 50hz) and output 46VDC.
connected to this i have a step down converter which i use to step down the 46 VDC to 12VDC.
Part of the issue is that the amp i'm building (amp) is made up from seperate 3 levels.
The power supply is on the bottom level and the step down is on the top level. and i have a minimal amount of space to run wires throught from the bottom to top so i designed all to minimise the amount and gauge of the wires running through this space, but it is cramped.
This all is a given i can and will not change any of this!
now my actual problem is the following:
The 12 v from the step down is needed on all 3 levels.
the mid level i can easily reach from the top but to reach the bottom level i need to run the + and - wires through this cramped space.
now i was wundering.. can i also run just the + down and connect the - to the - of the 46V output connector of the powersupply (which is at that dottom level) instead of the output of the step down,thus bypassing the step down for the - lead completely. and the need to run an additonal wire from the top to the bottom.
Personally i would say this would be oke IF the - lead through the step down has continuity, but it hasn't..
so can i or can't i do this?
and oh yeah. also placing another step down converter at the bottom level is not an option.
hope i explained this all properly so you can understand what i mean to ask in my head.
thanks in advance
Matt
i have a power supply with VAC input (230v 50hz) and output 46VDC.
connected to this i have a step down converter which i use to step down the 46 VDC to 12VDC.
Part of the issue is that the amp i'm building (amp) is made up from seperate 3 levels.
The power supply is on the bottom level and the step down is on the top level. and i have a minimal amount of space to run wires throught from the bottom to top so i designed all to minimise the amount and gauge of the wires running through this space, but it is cramped.
This all is a given i can and will not change any of this!
now my actual problem is the following:
The 12 v from the step down is needed on all 3 levels.
the mid level i can easily reach from the top but to reach the bottom level i need to run the + and - wires through this cramped space.
now i was wundering.. can i also run just the + down and connect the - to the - of the 46V output connector of the powersupply (which is at that dottom level) instead of the output of the step down,thus bypassing the step down for the - lead completely. and the need to run an additonal wire from the top to the bottom.
Personally i would say this would be oke IF the - lead through the step down has continuity, but it hasn't..
so can i or can't i do this?
and oh yeah. also placing another step down converter at the bottom level is not an option.
hope i explained this all properly so you can understand what i mean to ask in my head.
thanks in advance
Matt
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