100W LED

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About: embedded system enthusiast ...
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

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21 Discussions

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fkyc

2 years ago

no need to regulate current?

1 reply
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sansi

1 year ago

HEllo,
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

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RonaldS1

2 years ago

Works great!

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Jnweb29

3 years ago

I have 44v system and 10000mah or 10a so should i get a step down? I'm also trying to hook up blue 12v led lights, so i don't want to stress the battery with 4 different circuits running through it. 1:system/2:charge the lithium-ION/3:100w chip step down/4:12v led step down

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StevenG82

3 years ago

Hello, im building a 100 watt (maybe 200) flashlight with 1 (or 2) 100 watt led chips. My Question: would it be better to power it with one 12volt 7.2ah battery or two 12volt 5ah batteries in series equaling 24volts 5ah? Please any advice.

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a5378

3 years ago

can I connect 3 100watts chip to one 600watts invertor

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ptaholcomb123malthemail

Reply 3 years ago

Amazon.com :44mm Lens + 50mm Reflector Collimator Base Housing + Fixed bracket for 100W LED Light Lamp $7.49

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ptaholcomb123

3 years ago

I am making a 100 watt LED light coming from a 600 watt booster. I would like to run two separate lights for two different people with on/off capabilities. Setup: 12v mower bat》7.5A inline fuse》600w booster》2 on/off push buttons with (2)100w led lights on 2 separate peoples hand. (Flounder lights) i have the single one working, can i get 2 to work off one booster or do i have to change the volt pot to work at double and turn them on at the same time or _____?

1449753327665-2043515504.jpg1449753402116-1745204616.jpg
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Guybrush1973

3 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?

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Ramonv8

4 years ago on Introduction

I build a 100 W LED too. Maybe some hints for you: https://www.youtube.com/watch?v=Bh3FTfb5i74

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loganita

4 years ago on Introduction

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

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SaurIMX

5 years ago on Introduction

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.

1 reply
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nathanielgSaurIMX

Reply 4 years ago on Introduction

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.

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reklrekl

5 years ago on Introduction

Nice thing.
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.

1 reply

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

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pumpdatbass

5 years ago

ever check temps on that thing? id be curious as to how much light it actually produced and how warm it is 2-3" from the led edge and center.

1 reply