Driver Selection Again :)
Posted: Wed May 05, 2021 11:32 pm
Been a little while! I've been revisiting my build idea and could use some help validating what I've learned
side question: can you run a driver that lists a fixed voltage at a lower voltage? what's the difference between an AB driver that does 27~56V or an AB driver that is 56V
So I'm looking at 4 of these
560mm BXEB Gen3 Thrive 4000k 2690lm, 138 lm/W, 20.3Vf, 960mA, 19.488 W
https://www.digikey.ca/en/products/deta ... 3/13181804
running in series parallel, 2x2:
what's the math on series parallel?
I'm under the impression it's adding the volts for series, and adding the amps for parallel . in this case double for both? if that's the case:
Amps
test: 2x 960mA = 1.92A
max: 2x 1.92A = 3.84A
Volts
2x 20.3V = 40.6V
Watts
test: 38.976W
max: 77.952W
Then I think I need: 40.6V, 1.9-3.8A, 78W
I found:
XLG-100-H-AB https://www.digikey.ca/en/products/deta ... B/10129183
100W, 27-56V, 2.1A
XLG-150-H-AB https://www.digikey.ca/en/products/deta ... B/10222586
150W, 27-56V, 2.8A
The 150 gives a bit more room but doubt I could use it. To me the 100 seems like the best option.
Does this sound right or am I out to lunch? I've been trying to learn in the off-time but it's not coming fast
As always, appreciate the responses!
side question: can you run a driver that lists a fixed voltage at a lower voltage? what's the difference between an AB driver that does 27~56V or an AB driver that is 56V
So I'm looking at 4 of these
560mm BXEB Gen3 Thrive 4000k 2690lm, 138 lm/W, 20.3Vf, 960mA, 19.488 W
https://www.digikey.ca/en/products/deta ... 3/13181804
running in series parallel, 2x2:
what's the math on series parallel?
I'm under the impression it's adding the volts for series, and adding the amps for parallel . in this case double for both? if that's the case:
Amps
test: 2x 960mA = 1.92A
max: 2x 1.92A = 3.84A
Volts
2x 20.3V = 40.6V
Watts
test: 38.976W
max: 77.952W
Then I think I need: 40.6V, 1.9-3.8A, 78W
I found:
XLG-100-H-AB https://www.digikey.ca/en/products/deta ... B/10129183
100W, 27-56V, 2.1A
XLG-150-H-AB https://www.digikey.ca/en/products/deta ... B/10222586
150W, 27-56V, 2.8A
The 150 gives a bit more room but doubt I could use it. To me the 100 seems like the best option.
Does this sound right or am I out to lunch? I've been trying to learn in the off-time but it's not coming fast
As always, appreciate the responses!