Driver for dual channel board

[Calabroleso]

Hello i'm looking forward to design my own naked board for lm301h led. I'd like to run 6 strips of 30 or plus led each, and connect the 6 strips in parallel toghether for each channel. And have two different channel for each board. (something like this guy did before) viewtopic.php?t=159. And i can't figure out how to create the two channel from a single driver and what would be the input voltage for each channel? Also i'm an italian learner at his first step in this world. Thanks for the help in advance

[TEKNIK]

Hello i'm looking forward to design my own naked board for lm301h led. I'd like to run 6 strips of 30 or plus led each, and connect the 6 strips in parallel toghether for each channel. And have two different channel for each board. (something like this guy did before) viewtopic.php?t=159. And i can't figure out how to create the two channel from a single driver and what would be the input voltage for each channel? Also i'm an italian learner at his first step in this world. Thanks for the help in advance

You could use a controller to do this but its much easier and more efficient to use 2 drivers

[Calabroleso]

Hello i'm looking forward to design my own naked board for lm301h led. I'd like to run 6 strips of 30 or plus led each, and connect the 6 strips in parallel toghether for each channel. And have two different channel for each board. (something like this guy did before) viewtopic.php?t=159. And i can't figure out how to create the two channel from a single driver and what would be the input voltage for each channel? Also i'm an italian learner at his first step in this world. Thanks for the help in advance

You could use a controller to do this but its much easier and more efficient to use 2 drivers

Thanks for your answer, if would use a 1050mA cc driver (150w 72/143 V/DC) and lm301h (65mA - 200mA max) led i should worry about delivering to every series 65mA and not exceeding 143 V/DC wiring the leds togheter in series. Am i right? Am i missing something?

[PeteR_1]

Hello i'm looking forward to design my own naked board for lm301h led. I'd like to run 6 strips of 30 or plus led each, and connect the 6 strips in parallel toghether for each channel. And have two different channel for each board. (something like this guy did before) viewtopic.php?t=159. And i can't figure out how to create the two channel from a single driver and what would be the input voltage for each channel? Also i'm an italian learner at his first step in this world. Thanks for the help in advance

Individual LED Strips and Boards are typically designed with multiple Series / Parallel circuits on the PCB (Printed Circuit Boards) which dictates the DC Forward Voltage (Vf).




For example the Samsung inFlux L03 with thirty (30) LM301A diodes is 6-Series / 5-Parallel Circuit for 18.0 Vf.
Datasheet, page 16 PCB wiring diagram... https://static6.arrow.com/aropdfconvers ... 1.0.pd.pdf

Custom DIY Lumileds Strip build... viewtopic.php?f=32&t=5885
Completed Strips... download/file.php?id=4559
DIY Lumiled Strip Datasheet... download/file.php?id=4539

Other than using an LED Controller or separate LED Drivers a single LED driver can be wired to multiple "Channels" with "Vdc Selector Switches" if the Channels have similar electrical characteristics, Driver's maximum Output doesn't exceed the maximum Input of individual LED channel and they (channels) are wired in Parallel...

Selector Switch Position for Bridgelux Vesta 2750G LED Strips
Cool On / Warm Off = 5000K,
Cool Off / Warm On = 2700K,
Cool On / Warm On = 3900K

Vesta 2750G two channel LED Strip build... viewtopic.php?f=32&t=5761

[Calabroleso]

Thanks for your answer i'm starting to understand, last question, if i have 16 series of lm301h leds, and the series are wired in parallel and i have a ac/dc driver 1050mA. Does it mean that i'm delivering to every serie ~65mA (1050mA/16). And because lm301h are rated to work between (65 and 200mA) am i doing it right or i should raise or reduce the current on every serie?

[PeteR_1]

Thanks for your answer i'm starting to understand, last question, if i have 16 series of lm301h leds, and the series are wired in parallel and i have a ac/dc driver 1050mA. Does it mean that i'm delivering to every serie ~65mA (1050mA/16). And because lm301h are rated to work between (65 and 200mA) am i doing it right or i should raise or reduce the current on every serie?

You're welcome and good luck.
The 1050 mA should be divided by the number of Parallel Wired Circuits of the 16-Series / (x)-Parallel Board
1050 ma / (x)-Parallel = (?) mA per 16-Series Circuit

16 (LM301H in Series) * 2.7 Vf = 43.2 Vf
43.2 Vf * 65 to 200mA = 2.808 to 8.64 Watts each 16-Series circuit
2.808 to 8.64 Watts * (x)-Parallel circuit = typical to maximum Total Watts for Driver Selection

For example;
With 192 LEDs in a 16-Series / 12-Parallel circuit Board the 1050 mA LED Driver (43.2 * 1.050 = 45.36 Watts) will provide 87.5 mA to each Series Circuit if it can operate at 43.2 Vdc.

A better Driver selection (Meanwell HLG- or XLG- Series LED Driver) for the 16-Series / 12-Parallel Circuit would be;
A 48 Vdc Dimmable LED Driver that can provide 33.696 to 103.68 Watts (2.808 to 8.64 Watts * 12-Parallel)

[Calabroleso]

Thank you Peter for your time, your examples are truly clear. I decided anyway to make things easier and go whit prebuild strips, i was thinking to use 10 h-influx l06 to cover a 3'x4'. 5 strips at 5000k https://www.digikey.be/product-detail/e ... ND/8536562 , and 5 at 3500k https://www.digikey.it/product-detail/i ... ND/8536574 .
i would wire all them in parallel. 1.43A to 2.2A(max) 22.4 VDf
I would also use the meanwell HLG-320H-24 driver (12-24V) (13.34A) 320W
So i would run every strip at 1.334A *22.4*10=298.816 W
Is my math correct ? Can i proceed ?

[PeteR_1]

Thank you Peter for your time, your examples are truly clear. I decided anyway to make things easier and go whit prebuild strips, i was thinking to use 10 h-influx l06 to cover a 3'x4'. 5 strips at 5000k https://www.digikey.be/product-detail/e ... ND/8536562 , and 5 at 3500k https://www.digikey.it/product-detail/i ... ND/8536574 .
i would wire all them in parallel. 1.43A to 2.2A(max) 22.4 VDf
I would also use the meanwell HLG-320H-24 driver (12-24V) (13.34A) 320W
So i would run every strip at 1.334A *22.4*10=298.816 W
Is my math correct ? Can i proceed ?

You’re welcome and good luck.
The math looks OK.

BTW, I Would opt for -AB suffix MeanWell Driver (HLG-320H-24AB) for more versatility / adjustments.

And Grow lights should be Sized for the Grow Area... download/file.php?id=4438

3’ x 4’ = 12 sq ft, approx. 1.2 m2 (sq m)
800 PPFD x 1.2 m2 = 960 PPF fixture size
960 PPF divided by 2.5 PPE (nominally efficient) = 380 Watts fixture input

The Selected Strips and Driver;
181 Lm/W (1:1 mix) * 0.015 = 2.79 PPE
2.79 * 320 = 892.8 PPF output
892.8 PPF / 1.2 m2 = 744 PPFD (umol/s/m2)