I have five security cameras, all of which are powered from individual wall warts. 12 VDC SMPS; 1 A each. The warts take up so much space that I can only plug three into a power strip. I have to run two strips to plug in all five cameras, the DVR and the monitor.
I have a 12 VDC SMPS; 5 A. When I connect all five cameras to this supply the voltage remains at 12.2 volts. A single camera wall wart is running 12.4 volts w/out load and 12.2 volts loaded. So my 5A supply is doing the job.
The issue is that when all five cameras are plugged into the same source (2 or more) I get shadow lines across the screen. I contacted the manufacturer and they say the cameras are so sensitive that they each need their own supply. OK, if I have to - I can continue to run two power strips. But I'd LIKE to run just the one and free up plug space.
New project: Build a supply that is capable of delivering 12 volts at approximately 1 amp per output, 5 outputs (possibly as many as 8) with each output isolated from the others.
I have no clue where to begin. Wondering if I should go old school power supply; transformer, rectifiers, filters and regulators. I'd hate to build all that and find out the cameras still do the same thing. Maybe 5 (to 8) LM7812s each with its own filter stages. Any other ideas out there ? ? ?
I have a 12 VDC SMPS; 5 A. When I connect all five cameras to this supply the voltage remains at 12.2 volts. A single camera wall wart is running 12.4 volts w/out load and 12.2 volts loaded. So my 5A supply is doing the job.
The issue is that when all five cameras are plugged into the same source (2 or more) I get shadow lines across the screen. I contacted the manufacturer and they say the cameras are so sensitive that they each need their own supply. OK, if I have to - I can continue to run two power strips. But I'd LIKE to run just the one and free up plug space.
New project: Build a supply that is capable of delivering 12 volts at approximately 1 amp per output, 5 outputs (possibly as many as 8) with each output isolated from the others.
I have no clue where to begin. Wondering if I should go old school power supply; transformer, rectifiers, filters and regulators. I'd hate to build all that and find out the cameras still do the same thing. Maybe 5 (to 8) LM7812s each with its own filter stages. Any other ideas out there ? ? ?