2 drivers 1 cob

Voidling

Voidling

Well-Known Member
Oh. My avatar is just a black box on my phone too. It was intentionally made to be a very faint.
 
Voidling

Voidling

Well-Known Member
bicit said:
Found an interesting article relevant to this topic.
Click to expand...
As far as I can tell, there's no link here, ha.

If I'm understanding correctly, that three way switch is running the drivers in parallel when running both of them?

Have you continued to run this to know if it causes any problems?
 
Rahz

Rahz

Well-Known Member
In the early 90's I worked at an ISP doing phone support with a group of guys in a room. Desks were in a large circle so no one could see anyone else's monitor. This one guy Chuck would surf that shit and say "Hey, come check this out man!" We were like "No way dude." And he was like "No, it's not bad I promise really... it's funny"... it was never funny.

SupraSPL said:
I have never seen the famous viral video, luckily, I learned that lesson by looking at Rotten.com when the internet first came out.

Anyway, I retrofitted a pole lamp with a Vero 10 2700K in the living room and ran it at 150mA (5W). It is nice but my wife needs more light sometimes. So I got a 300mA driver and bought a 3 way switch with the intention of switching between drivers. But on the third setting this particular switch powers both drivers. I was surprised that it worked. So low is 5W (150mA), medium is 10W (300mA) and high combines both 15W (450mA).
View attachment 3324907

Not sure how this could come in handy for grow lamps yet, but those 150mA drivers are only $1.25 and the switch is $3 at Walmart.

View attachment 3324908
View attachment 3324906
Click to expand...
 
Meinolf

Meinolf

Well-Known Member
Good topic! I knew it worked for the cheapo drivers because some of the readymade floodlights have 2 drivers wired in parallel (e.g. 2x 50W drivers on 1x generic 100W COB). Will it work for meanwell drivers as well, e.g. LPC-100-700?
 
alesh

alesh

Well-Known Member
Voidling said:
I just saw they were constant current, or thought I did. That was what I searched for anyway
Click to expand...
They're linear constant current supplies :) And the schematics is actually no more complicated than 2 identical drivers in parallel.
But most people here are talking about switching CC supplies. They can be used as described in this thread.
 
Voidling

Voidling

Well-Known Member
Thanks, glad you came by. I took an electronics course back in high school but I never heard of constant current drivers until the last few years. And truthfully I never looked into then past their given specs.

Maybe it's not. But there's a reason I never made an led light until these cobs came out. I was talking with knna, supra, and weeezard back when. Just couldn't being myself to solder all those leds. I'd done it once for some custom truck lights and that was too much for me.

There's a reason the navy put me into mechanical rather than electronics.
 
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