Led driver electronic circuits design electronics projects

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Led driver electronic circuits design for : rgb led , high power led , white led , led display using led driver ICs and other methods .

Economy high brightness led flashlight circuit

A very simple economy high brightness led flashlight circuit can be made using a simple AC-DC converter from some other unused device like an mobile phone, and some common resistors and high brightness leds.

Circuit Diagram: 
economy high brightness led flashlight circuit diagram
led 1210 smd warm white

LM3409 dimming controlled LED driver circuit design

This dimming controlled LED driver circuit is designed using LM3409 P-channel MosFET controller for step-down (buck) current regulators .
The LM3409 devices use Constant Off-Time (COFT) control to regulate an accurate constant current without the need for external control loop compensation.

Circuit Diagram: 
LM3409 dimming controlled LED driver circuit design
LM3409 dimming controlled driver circuit

LTC3600 LED driver circuit

The LTC3600 LED driver circuit is manufactured by Linear Technology, and can be used for design a very simple high efficiency LED driver circuit with programmable dimming control .
LTC3600 is a monolithic synchronous buck regulator whose output is programmed with just one external resistor.

Circuit Diagram: 
LTC3600 LED driver circuit design project