With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Arduino-based Switching Voltage Regulators
24 Watt LED Grow Light with Brightness Control
15 watt LED Helmet Light with Wide Angle Rear Light
Arduino-based High Powered Switching LED Drivers
Step-down LED Driver (Up to 36V Input with Sleep Feature)
84W PC Chassis LED Grow Light
You'll need a step-up converter which needs to handle an input current of around 4.2A. This converter can only step down.
There's a boost converter Instructable but you'll need to modify its circuit and code to become constant current instead of constant voltage.http://www.instructables.com/id/DIY-Boost-Converte...
In fact, I want to feed with 12Volts and get 36 volts at the output to serve as a driver for LED 50Watts chip, but keep a low amperage, and increase a fuse to protect the circuit and the actual LED chip 50Watts
It also great for working in dark areas. But its advantage is having wider angle than the others and the rear light. http://amzn.to/2dVC90K
I like how the LEDs were spaced. You can turn it into a signal light too.
This kind of light would be perfect for exploring caves.
What are their forward voltages and currents?If the 100W LED has a Vg of 34V and an If of 3500 mA, and the power supply is 36V with a rating of 4A, it should work on paper. I haven't tried 36V before.It's possible that you need to use a higher rating for Q4 and D3. L1 should handle at least 4A, D3 should handle at least 4A and 40V, C1, C4, and C5 should handle at least 50V, and Q4's Vds should handle at least 40V.
Sorry I didn't upload it before.
I can't find a P-channel MOSFET in SOT23 package that handles over 40V so I modified the circuit board traces so that Q4 would be in TO-220. You can use IRF540N.
Very cool your project, but I would like to ask a question:I want to use this driver for an LED 50W or 100W would work or what would have to change to make it work properly ????I await a friend noble return.SincerelyMaruery cool your project, but I would like to ask a question:I want to use this driver for an LED 50W or 100W would work or what would have to change to make it work properly ????I await a friend noble return.SincerelyMaru
Very cool your project, but I would like to ask a question:I want to use this driver for an LED 50W or 100W would work or what would have to change to make it work properly ????I await a friend noble return.SincerelyMaru
3W LED Strobe - 2 AA Batteries and Joule Thief
Multi-Color Light Painter (Touch Sensitive)
Transistor Instead of Relay for Car Horns
How to Mount Seat Post Bike Lights to a Pannier Rack
Determining Forward Voltage of LED's
How visible is the 5050 strip in daytime?
High Powered Helmet Light (Front, Side, and Rear Combo)
Fixing Frosted Chalked and Faded Headlights
Simple Low Resistance Tester (Milliohmmeter)
Join 2 million + to receive instant DIY inspiration in your inbox.
Download our apps!
© 2016 Autodesk, Inc.