OK, this might be a curly one, or I've just done something stupid. l ran a 36v power cable out to a 36v to 12v DC converter with a 10 amp capacity. On the output side I connected three 100 pixel strings that are rated at 0.3 W per pixel, or 30W for the whole string, so I hope I'm well within the operating limits of the device there. All the pixels lit up when I started a sequence aand then either froze or started to behave erratically. I immediately checked the common ground between the two power supplies running this set of lights (5 such strands in all with 2 strands running off a 12v supply directly) as this sort of behaviourI have seen, in the past, to be associated with confused logic signals caused by no proper V- path common to two or more power supplies. Today, however, I could not get these pixels to sequence no matter what grounding config I used. Set up with two 12v supplies running 12v direct to each string with a common V- between the supplies and controller works fine though. Any ideas and suggestions gratefully accepted.
DC to DC conversion
- Thread starter garyjac1
- Start date
plasmadrive
Full time elf
could be noise from your converters
plasmadrive
Full time elf
Another thing to think about, are you over the recommended operating voltage of the converters?