cheap, dimmable drivers by "thomas research products" + display
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- LED Maniac
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I was only getting 70% with a 5k b pot hooked to one driver or two. Hmmm Maybe because I was reading from the 40w driver? Could the resistances be different on different wattage drivers?
NothinYet is my nickname
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- LED Maniac
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I'll grab some 5k ohm a pots and 10k ohm a and b pots. When I start building the light I'll get voltages and current readings from each strip.
NothinYet is my nickname
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- LED Maniac
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I've been reading on riu. They are reporting that the linear taper pots are easy to dial in. Audio logarithmic pots are harder to dial in, and most of it will be on one side of the curve(how your curve looks)
NothinYet is my nickname
yeah i imagine they are better for HLG drivers because they have a linear response curve (25K = 25% power, 50K = 50% power, etc.).sdfoster22 wrote: ↑Wed May 09, 2018 2:23 amThey are reporting that the linear taper pots are easy to dial in.
but these TRP drivers have logarithmic response curves. that should be counteracted/"linearized" by using a log. pot.
the idea here is that this A-type pot and its own log curve "neutralizes" the log curve of the driver, resulting in a (somewhat) linear dimming response when turning the pot.
so i made the test again, but this time with Fseries instead of Vesta. because 2x F562Bs don't reach the driver's max of 25V: so in this case a 10K pot only gives 90% power
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- LED Enthusiast
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How many of those 75 W drivers do you think can be hooked up to a single wall plug? I’ve got eight drivers, I figure I would be pushing it trying to wire all eight of them up together but just curious how many I might get away with
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It depends on your cord rating. If you run 220v or 110v for electric. It also depends on what amp breaker the outlet your drivers are plugged in to, and what other things are ran off that breaker.infosponge wrote: ↑Thu May 10, 2018 4:08 pmHow many of those 75 W drivers do you think can be hooked up to a single wall plug? I’ve got eight drivers, I figure I would be pushing it trying to wire all eight of them up together but just curious how many I might get away with
NothinYet is my nickname