Hi there, I'm trying to design and make a circuit to power a multi-camera array. I have 60 Canon Powershot A640 cameras which can each be powered by an adaptor which supplies 4.3 Vdc and 1.5 Amps. I have bought 3 bench power supplies which each output a fixed 13.8 Vdc and 40 Amps. I am hoping that I will be able to create a working circuit from these which will not destroy the cameras.
I am a newbie so I do need help to navigate any pitfalls . I am thinking of creating a circuit of 8 sets (in parallel) of 3 cameras (in series). I am thinking that 3 cameras in series would receive 13.8/3 = 4.6Vdc each and that the 40 Amps output would be enough for the 24 cameras (as 24*1.5 = 36).
I could create this setup but what are the dangers here?
I have thought that if the resistance of the cameras varied depending on whether they are on or off then that could expose the other cameras in the series to too much voltage .. is it possible to test this?
Also 4.6 VDC is 0.3VDC higher than the manufacturers adaptor. Is this very bad and could some resistance be added to the series to bring the Voltage down to 4.3 VDC ?
I am a newbie so I do need help to navigate any pitfalls . I am thinking of creating a circuit of 8 sets (in parallel) of 3 cameras (in series). I am thinking that 3 cameras in series would receive 13.8/3 = 4.6Vdc each and that the 40 Amps output would be enough for the 24 cameras (as 24*1.5 = 36).
I could create this setup but what are the dangers here?
I have thought that if the resistance of the cameras varied depending on whether they are on or off then that could expose the other cameras in the series to too much voltage .. is it possible to test this?
Also 4.6 VDC is 0.3VDC higher than the manufacturers adaptor. Is this very bad and could some resistance be added to the series to bring the Voltage down to 4.3 VDC ?