I'm Dhyaksa from Indonesia,
Last week i get some High power LED (XML-T6 Series) emitter from my friend and i want to make some LED Driver circuit for these High Power LED.
Specs :
~3.7 - 4.2V
3A Max. Current
I still confusing about PWM circuit and because of limited component to make D.I.Y LED driver, i decide to make the driver from Adjustable regulator and Power transistor, (Attachment added)(sorry for my bad drawing from corel).
But the problem is : when i adjusting the regulator circuit without any load (LED) it can show 3,7V or 11,2V (for 3 Leds in series). but when i connected to load, voltage just drop too much and the current just show on 0.26A only, can anybody give me a suggestion for my project?
The Source is from VLRA Battery specs 12V / 10A.
or anybody can give a better circuit suggestion for efficient and durable High Power LED Driver.
Many thanks.
Dhyaksa.
Last week i get some High power LED (XML-T6 Series) emitter from my friend and i want to make some LED Driver circuit for these High Power LED.
Specs :
~3.7 - 4.2V
3A Max. Current
I still confusing about PWM circuit and because of limited component to make D.I.Y LED driver, i decide to make the driver from Adjustable regulator and Power transistor, (Attachment added)(sorry for my bad drawing from corel).
But the problem is : when i adjusting the regulator circuit without any load (LED) it can show 3,7V or 11,2V (for 3 Leds in series). but when i connected to load, voltage just drop too much and the current just show on 0.26A only, can anybody give me a suggestion for my project?
The Source is from VLRA Battery specs 12V / 10A.
or anybody can give a better circuit suggestion for efficient and durable High Power LED Driver.
Many thanks.
Dhyaksa.