31v Ac and DC dumb pixels

Scott Suine

New elf
Joined
May 9, 2020
Messages
17
HI,
Looking to add some of the dumb pixels to my show this year ( have them lying around). I have bought Hansen electronics 2811DC15 and powered by a 31vDC power supply have the DC lights working fine. I have some others which are AC powered. When I hook them up to the DC power supply only every second light works, it I swap the connectors the other lights work.
Is there a proven solution to get these to work. Ideally an inverter I could put on the 1 output of the DC15 and create a square wave AC signal would do it.

thanks
Scott
 

Mark_M

Full time elf
Generous elf
Joined
Dec 30, 2018
Messages
397
Location
Auckland, NZ
Are they AC lights because they have an MFC using the 50Hz frequency for timing?
If you cut the MFC out the lights will not flash on their own and should work with DC.

When I hook them up to the DC power supply only every second light works, it I swap the connectors the other lights work.
Hansen has an H-bridge controller that should work.
 

AAH

I love blinky lights :)
Community project designer
Joined
Dec 27, 2010
Messages
3,636
Location
Eaglehawk
Hi Scott
My DMX2-18 is the go for the dread 2 wire, 2 channel lights that are now the norm from Bunnings, Big W etc.
 

Mark_M

Full time elf
Generous elf
Joined
Dec 30, 2018
Messages
397
Location
Auckland, NZ
If the lights are set to static by the MFC then you could use a relay connected to the DC board. This obviously won't be dimming and it only controls the entire string as 1.
 
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