Meanwell Simultaneous Dimming?

Has anyone set this up using a pot?

I'm trying to figure out the wiring to dim 2 drivers at once. I've got a 50k pot with a 5.1k resistor for low limit.


My question is how are the positive legs connected? Do I simply tie both drivers' dimming wires together (+ to + and - to -) and the connect the unified leads to the pot?

Or do I cap one +ve lead from one driver to only give me the 10VDC reference signal from a single driver, then hook the -ve leads together to one side of the pot?

The data sheet is awful short on answers...

you need a dual pot my guy. not necessarily this one but audio components are typically high end. basically, the mechanical function is in synchronous and the resistances are separated
http://www.bestbassgear.com/noble-eq-pot-50k-stacked.htm?gclid=CjwKCAjw16HLBRBFEiwAElREqM1QOsTIcPm-YlxtAKVQl6AI-yHCqw1H5R4NYCTlBl_12JanDPy7whoCjdwQAvD_BwE

That's one way to do it, but then you'd need a 100k ohm push/pull with 10k ohm low limit resistor.

The HLG data sheet has simultaneous dimming information, it's 100k ohm/n where "n" is the number of drivers. So for 2 drivers (what I have) you need 50k ohms on the pot and 10% of that value on the 'low' side as a limiter, so a 5k ohm resistor.

The only brain fart I'm having is about how the drivers connect to the pot. the signal from the positive side is 10vdc at a few microamps and dc amperage is additive in parallel so hooking up both leads will give 10vdc at twice the microamps.

Near as I can tell, it's reading for voltage for dimming, not amperage. Given the absolutely tiny current I believe I just connect like leads to the wiper and far pin and give 'er. I'm about 95% sure on this, but want to make sure so I don't fry $200+ with of brand new equipment.

put the driver leads in parallel and wire those to the pot/resistance source

CobKits said:

put the driver leads in parallel and wire those to the pot/resistance source

Click to expand...

Thanks! this is what I thought, but it seemed too goddamed easy.

the driver leads are pretty isolated from everything. youd have to put high voltage or something silly to them to do any damage

CobKits said:

the driver leads are pretty isolated from everything. youd have to put high voltage or something silly to them to do any damage

Click to expand...

All my previous experience is with old Cree XR-Es and buckpucks, they're almost a different beast than COBs.

With and without additional on/off switch to squeeze out up to 108% from the driver.

And there is not really the need to use an additional resistor for limiting because the drivers min. output is ~5-6% for HLG's smaller as 320H, HLG-320 and upwards are dimmable to zero, 0,5w stand-by.