Over the last several years, small color LCD displays have been integrated ... a diffuser to distribute the light and a backlight driver to convert the available power into regulated constant current ...

An analysis conducted by Lawrence Berkeley National Laboratory suggests that advances such as more efficient LED driving can ... a perfectly regulated constant-current power supply, it follows that ...

LED DRIVER CIRCUITS The design in Figure 3 represents a constant current chopper driver that provides a dc current with 10% ripple to an LED string used to edge light an LCD. The pass switching ...