LED COB chip help please

[JACOXVIII]

So I jumped in on a White & Blue COB chip before the Dream chips came out. Now I'm looking to convert my old set up to a 5 Ch chip. So if I'm reading this right my MeanWell HLG-185H-36B is 18-36v & 5.2 A around 186 W
All I would need is the LDD in 700ma to 1000ma
do I need to worrier about CH 4 withe the 27-29V

and I want to run something like this COB 5ch chip.

Channel 1: EPISTAR ES-CADBV45P 45*45mil 4500K x 20 chips (32-34V @ 700mA-1000mA)

Channel 2 : EPISTAR ES-CADBV45P 45*45mil 455nm Royal Blue x 20 chips (32-34V @ 700mA-1000mA)

Channel 3 : EPILEDS EP-U4545K-A3 45*45mil 430nm Violet(UV) x 20 chips (32-34V @ 700mA-1000mA)

Channel 4 : EPILEDS BH-R4242D-A1 42*42mil 660nm x 10 chips + Epistar ES--CADBV45P 490nm x 10 chips (27-29V @ 700mA-1000mA)

Channel 5 : EPILEDS EP-U4545K-A3 45*45mil 410nm X 20 chips (32-34V @ 700mA-1000mA)

 

[oreo57]

The 27-29V channel is fine. Ldd will limit voltage if that is your concern.
A bit more "troublesome" but not near a problem is the fact that the "B" power supply is non-adjustable.
So 36V is probably max out.
Technically the LDD's need a 3V "differential" between input and output.
It is "possible" that some of the channels will "need" 34V to achieve 1000mA
your PS would need to be able to do 37v. You're a volt short.
In reality, this may not be a real problem...
but something to ponder..

 

[JACOXVIII]

ok thanks.
if i can't hit 100ma its ok just want to start with what I have for a driver

 

[JACOXVIII]

Ok I need a bit more help
Let say I want to run 2 , 3 or 4 5ch chips do i need a set of LDD's for each chip. So with the chip in op would be roughly 150w.
To run 3 I would need a 450w with 15A and 37v
To run 4 I would need a 600w with 20A and 37v
I know those power supplies may not be out there but...

The big ? is do I need a set of LDD's for each chip

 

[Maryland Guppy]

Channel 1: EPISTAR ES-CADBV45P 45*45mil 4500K x 20 chips (32-34V @ 700mA-1000mA)

Specification:
Led chips: EPSTAR ES-CADBV45P 45mil
DC forward Voltage: 9-10.5V
DC forward current: 2000mA max
Rated power: 21W max
Viewing Angle: 120 Degree
Life span 50000 hours guarantee

Is this the correct item? x 20 pieces?

 

[JACOXVIII]

not sure what this is about "spam"

 

[perkint]

Ch 4 might be low enough voltage that you could run 2 of that channel on one LDD but it is close enough that it isn't worth trying (might work, might not depending on fV variations of the LEDs). And none of the others are anywhere near low enough voltage to try and squeeze two onto a single LDD. So yes, a set of LDDs per chip.

For the PSUs, when getting up to higher powers, it's worth looking at running multiple supplies.

Tim

 

[Maryland Guppy]

not sure what this is about "spam"

Not spam trying to understand the [x 20 chips (32-34V @ 700mA-1000mA)] part.

The spec I found on line.
Specification:
Led chips: EPSTAR ES-CADBV45P 45mil
DC forward Voltage: 9-10.5V
DC forward current: 2000mA max
Rated power: 21W max

You could use 3 on 1 LDD 1000mA driver. 3x10.5 = 31.5+3 = 34.5 is <36VDC
Why use a 20 watt COB and only run at half potential? Just asking.