A very simple high efficiency led driver circuit can be designed using LNK454DG controller designed by Power Integrations . This LNK454DG led driver is configured as non-isolated discontinuous flyback converter designed to drive LED strings at voltages of 2.5 V to 3.5 V with an output current of 366 mA.
The circuit meets both line surge and EMI requirements and the low component count allows board dimensions required for LED candelabra bulb replacement applications.
LNK454DG led driver is very easy to be configured and require few external electronic parts.
A very simple low cost white LED driver electronic circuit project can be designed using the TB62756FUG high efficiency step-up type DC DC converter designed especially for use as a constant current driver of white LEDs.
Using the TB62756FUG white LED driver it is possible to drive 2 to 6 white LEDs connected in series using a lithium-ion battery.
The TB62756FUG driver IC incorporates an N-ch-MOS FET required for switching of an external inductor.
The forward current of the LEDs can be controlled by an external resistor.
A very simple 14 Watts Led driver electronic circuit can be designed using the LNK406EG high efficiency ic led driver that allow implementation of cost effective and low component count LED drivers . This TRIAC dimmable LED driver circuit design project has a nominal LED string voltage of 28 V at 0.5 A from an input voltage range of 90 VAC to 265 VAC.
The topology used in this LNK406EG 14 Watts Led driver electronic circuit is an isolated flyback operating in continuous conduction mode.