Samsung LM561b & LM301a Strip Driver Questions

boyd crowder

boyd crowder

Active Member
I was hoping I could get a lil Help today
I did alot of research into cobs back in 2015 and wound up going to hps anyways, but one thing about that research i learned was cobs need constant current drivers - well i did 0 research on strps as they werent popular back then so whats up with those, are they considered cobs too?

background
_______________

I just picked up 10 Influx LM09 lm301a 96 up 2' Strips @66w /1380ma 52 Vf and i had ordered hlg240 1400a drivers for them from arrow whih are CC
they came in but the drivers they sent were hlg150h 24b's which are 150w 12-24v 6.3A CC+CV

so they are gonna refund my cash and let me keep these incorrect drivers for some reason
So once that posts ima reorder those hlg240 1400's
but now thyat ive got these 24v drivers im just gonna get a shitload (42 actually ) of 11w strips based on the 561b
sooo questions time

#1 could i use these hlg150 24bs to power up these lm09's if i run em on a rail?
#2 will trying to create 48Vf from 2 24V drivers even work? or would i still have 24v @12.6 amps? obviously dont wanna run both drivers series lol , right?
#3 Do i run a rail to divy up the amps to these 11w strips? so say i run 14 strips on one driver , will that be okay?
TIA
@captainmorgan @SupraSPL @CobKits @robincnn @PetFlora @REALSTYLES
_________________________________________
Vertical StovePipe Strip Build Coming Soon!
Vertical 2x4 dbl sided vert panels build coming soon
 
Last edited:
JavaCo

JavaCo

Well-Known Member
Not going to work you can't make 48 volts out of the Two 24 volt drivers. I would order the proper drivers. You would only be able to power 3 strips on a HLG-240H-C1400a as it has a max voltage of 179 volts , 52 volts a strip so three would take you to 156 volts.
 
nfhiggs

nfhiggs

Well-Known Member
boyd crowder said:
I was hoping I could get a lil Help today
I did alot of research into cobs back in 2015 and wound up going to hps anyways, but one thing about that research i learned was cobs need constant current drivers - well i did 0 research on strps as they werent popular back then so whats up with those, are they considered cobs too?

background
_______________

I just picked up 10 Influx LM09 lm301a 96 up 2' Strips @66w /1380ma 52 Vf and i had ordered hlg240 1400a drivers for them from arrow whih are CC
they came in but the drivers they sent were hlg150h 24b's which are 150w 12-24v 6.3A CC+CV

so they are gonna refund my cash and let me keep these incorrect drivers for some reason
So once that posts ima reorder those hlg240 1400's
but now thyat ive got these 24v drivers im just gonna get a shitload (42 actually ) of 11w strips based on the 561b
sooo questions time

#1 could i use these hlg150 24bs to power up these lm09's if i run em on a rail?
#2 will trying to create 48Vf from 2 24V drivers even work? or would i still have 24v @12.6 amps? obviously dont wanna run both drivers series lol , right?
#3 Do i run a rail to divy up the amps to these 11w strips? so say i run 14 strips on one driver , will that be okay?
TIA
@captainmorgan @SupraSPL @CobKits @robincnn @PetFlora @REALSTYLES
_________________________________________
Vertical StovePipe Strip Build Coming Soon!
Vertical 2x4 dbl sided vert panels build coming soon
Click to expand...
The "need" for constant current drivers is WAY overstated. Its the "preferred" method, but it is in no way an absolute necessity. I've used constant voltage supplies exclusively, and it works just fine. Works for COBs and it works for strips.

I have no idea what you mean by "running them on a rail". Can you explain in detail what you mean by that?
 
nfhiggs

nfhiggs

Well-Known Member
boyd crowder said:
#1 could i use these hlg150 24bs to power up these lm09's if i run em on a rail?
#2 will trying to create 48Vf from 2 24V drivers even work? or would i still have 24v @12.6 amps? obviously dont wanna run both drivers series lol , right?
#3 Do i run a rail to divy up the amps to these 11w strips? so say i run 14 strips on one driver , will that be okay?
TIA
Click to expand...
OK, I think I get what you mean by rails - you mean running them in parallel, correct? Yes you can do that. And you can wire the outputs of two drivers in series to produce 48 V. You connect the negative voltage output wire of one driver to the positive voltage output of the second driver. No other connections are made to these wires - they are only connected to each other. Then you will have 48 volts from the positive wire of the first driver to the negative wire of the second driver. Only the voltage will add, the current available will be the same as one driver, 6.3 amps.
 
boyd crowder

boyd crowder

Active Member
nfhiggs said:
Its referred to as "stacking" power supplies. It only works with power supplies that use floating returns (ungrounded) on the outputs. AFAIK, all Meanwell HLG drivers use floating returns.
Click to expand...
soooo
you saying i can do series a pair of drivers to play with these strips this weekend? anyone wanna corraborate? im not in a hurry to burn my gear out but its would be cool to fool around with em
yes a rail is where i would run all the drivers outputs to a rail and run the strips in parallel
hmmm series drivers , nteresting....
floating returns... thanks for your info nfhiggs
 
nfhiggs

nfhiggs

Well-Known Member
boyd crowder said:
soooo
you saying i can do series a pair of drivers to play with these strips this weekend? anyone wanna corraborate? im not in a hurry to burn my gear out but its would be cool to fool around with em
yes a rail is where i would run all the drivers outputs to a rail and run the strips in parallel
hmmm series drivers , nteresting....
floating returns... thanks for your info nfhiggs
Click to expand...
I would just verify with a meter that you have very high resistance (megohm range) from the Neg output wire to the input power return wire. That indicates a floating or ungrounded output. Its just like stacking batteries to make 6 volts from 1.5 volt cells.
 
JavaCo

JavaCo

Well-Known Member
I would contact Meanwell and ask them for the official stacking of drivers guide before preceding.
 
boyd crowder

boyd crowder

Active Member
so after googling around i found this
power-supplies-australia*com*au/blog/connecting-mean-well-power-supplies-series
yes i can wire drivers in series and yes i can run em on rails -
i wish i couldve known how to phrase this in google before making this post but , well
thank you for your help @nfhiggs
 
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