As we know,the white LED is hard to drive to reach maximum efficiency.These requirements can be easily met using the LT1618 DC/DC converter from Linear Technology.With the circuit above you can drives white LEDs with an input voltage range from 1.6V to 18V,the LT1618 can provide LED drive from a variety of input sources, including two or more alkaline cells, or one or more Li-Ion cells.
|
|||||