- on Power Supplies
- Published in issue 3/2009 on page 74
PR4101 Dimmable Power LED Driver
Recently PREMA released the PR4101, a step-down driver designed for power LEDs. It requires an input voltage of between 7 V and 40 V and at its output can drive one or more LEDs at constant current, irrespective of fluctuations in this voltage. The drive current is relatively smooth, which is beneficial for the life of the LED.