sarathssca
Member
Could you please suggest regarding power supply for integrated ACA amp.
I am planning to have remote controlled volume control, small lcd display , optional preamp gain stage, and aca amp in same cabinet. Currently powering up the ACA with 19v, 90w laptop power supply. So inside the box we will be getting 2 wires one +19v line and one 0v line.
For the remote control will be using ardunio which needs +5v.
So can i use the same 19v supply lines (and ground lines) from the main amp , convert it to 5v using LM317 and feed the digital part ie. ardunio, remote control receiver, lcd?
Both the supply (19v and gnd) lines will be connected at a single point where they will branch to main amp and other part branch to digital part.
Or do we need to use a isolated DC-DC converter for 5v digital part?
I am planning to have remote controlled volume control, small lcd display , optional preamp gain stage, and aca amp in same cabinet. Currently powering up the ACA with 19v, 90w laptop power supply. So inside the box we will be getting 2 wires one +19v line and one 0v line.
For the remote control will be using ardunio which needs +5v.
So can i use the same 19v supply lines (and ground lines) from the main amp , convert it to 5v using LM317 and feed the digital part ie. ardunio, remote control receiver, lcd?
Both the supply (19v and gnd) lines will be connected at a single point where they will branch to main amp and other part branch to digital part.
Or do we need to use a isolated DC-DC converter for 5v digital part?
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