100W LED
Intro: 100W LED
This is the demonstration of powering 100W/34V LED from 12V power-supply .
there are 5 parts
1, 12V/7.4Ah UPS sealed lead acid battery
2, DC-DC step up converter [12v to 34V boost converter ]
http://www.ebay.com
3, constant current driver [ not include ]
low cost LED driver from http://homemadecircuitsandschematics.blogspot.in
4, LED 100w /34V with sufficient heat sink [ Processor heat sink is a good option ]
http://www.ebay.com/sch/i.html?_sacat=0&_sop=15&_nkw=100w+led+bulb&_frs=1
5, LED Lens and Lens holder
video: old
video: new
there are 5 parts
1, 12V/7.4Ah UPS sealed lead acid battery
2, DC-DC step up converter [12v to 34V boost converter ]
http://www.ebay.com
3, constant current driver [ not include ]
low cost LED driver from http://homemadecircuitsandschematics.blogspot.in
4, LED 100w /34V with sufficient heat sink [ Processor heat sink is a good option ]
http://www.ebay.com/sch/i.html?_sacat=0&_sop=15&_nkw=100w+led+bulb&_frs=1
5, LED Lens and Lens holder
video: old
video: new
21 Comments
fkyc 7 years ago
no need to regulate current?
BrandonD83 5 years ago
sansi 6 years ago
I need to make led driver With this specification.
1
INPUT VOLATAGE RANGE
70-140 VDC / VAC
2
OUTPUT VOLTAGE
15 VDC
3
OUTPUT CURRENT 1
3 Amp
4
OUTPUT CURRENT 2 (WITH DIMMING FUNCTION)
2.5 Amp
5
SURGE PROTECTION
1.8KV, 1.2/50 µsec
6
WORKING TEMP
0°C to 85°C
7
PROTECTION :
Short circuit
7.1
open circuit
7.2
reverse polarity input
7.3
over voltage
7.4
under voltage
7.5
EMI / EMC PROOF
8
OUTPUT WATTAGE
15VDC X 3 AMP = 45W
RonaldS1 7 years ago
Works great!
Jnweb29 7 years ago
StevenG82 8 years ago
a5378 8 years ago
malthemail 8 years ago
does anyone know where to get lenses from?
ptaholcomb123 8 years ago
ptaholcomb123 8 years ago
Guybrush1973 8 years ago
I can't see point 3 in image/video. Is that circuit really needful?
I followed the link, but I have no idea which transistor i need to replicate schema. Can someone help me?
Ramonv8 8 years ago
I build a 100 W LED too. Maybe some hints for you: https://www.youtube.com/watch?v=Bh3FTfb5i74
johnfixesstuff 8 years ago
I made one of these with a different step-up regulator and have drawn up a schematic of it if anyone is interested in seeing more details: http://www.shareyourrepair.com/2015/08/how-to-powe...
It doesn't put out 100W though.
loganita 8 years ago
I made the circuit and I encountered a problem.
I supplied from a source computer and functioned properly, but when I powered by a car battery to light it burned.why
SaurIMX 9 years ago
Hi, i've tried to use a 50w led with the same driver you have. but the problem is whenever I try to power it with 12V supply, a hissing sound comes out and i only get 27V at the output with load and around 35V without load means without the LED. Is it normal or do I have a faulty driver?
Thanks.
nathanielg 9 years ago
I have had the same problem. I found that the gauge wire i was using was either too small or too long causing to great of a voltage drop through it ( from the battery to the boost converter). once the input voltage dropped to about 9-10v the converter would begin to hiss and the led would flicker. So check the input voltage to the converter at the converter and that should solve the problem.
reklrekl 10 years ago
But do i really need a current limiter to drive the LED and if yes, what transistors/resistors will I need?(32V, 3A) and do I need PNP or NPN transistors?
I think the step up converter is current limited at 6A, sso that would kill the LED...
Thanks.
Jestin_Cubetech 10 years ago
DC-DC 100W Constant Current Boost Step-up Module Power Supply.
http://www.ebay.com/itm/2-pcs-DC-DC-100W-Constant-Current-Boost-Step-up-Module-Power-Supply-LED-Driver-/310918358323?pt=LH_DefaultDomain_0&hash=item48642da533
pumpdatbass 10 years ago
Jestin_Cubetech 10 years ago
at least 40 deg C