However, voltages in the common line near to target ones are easy to fail due to wire resistance.Īs combination of the previous two, a common line of 12Vrms AC that is converted to DC and reduced to 5V before each device.
Instead of distribute DC current, use a common line of AC current, around 5.5Vrms AC, that is converted to DC before each devices using a diode bridge.
Thus, I'm thinking in two possibilities:Ī common 12v line, with DC-DC converters before each device. However, I like to reduce number of elements.Ī single shared 5V line doesn't seems a good idea, too much voltage fall due to wires impedance that will made them unusable and inefficient. The obvious solution to a continuous power of these devices is use a adapter 230 AC/5 DC before each device. These devices are distributed in the space, up to tens of meters between them. In a domotics installation I will have several devices, Arduino's by example, that typically powers with 5V/1A.
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