AVT761 B

White LEDs are increasingly used in various types of flashlights. Like all such elements, they can not be powered directly from batteries, a controller - a current limiting system is necessary. Various solutions are used from the simplest current sources to complex impulse converters. The presented layout is very simple and allows you to build a small, comfortable flashlight. As feed, three popular "fingers" are used. The system assembled from good and proven elements works immediately, requiring no tuning or adjustment.

The device is particularly recommended to amateurs and LED lights and to all scouts

Selected parameters:

• light source - white LED
• big power of light
• low power consumption
• easy assembly and commissioning
• power supply - 4,5Vdc (three R6 batteries)
• in the set of 2 printed circuit boards, two sets of elements (including 4 LED diodes) and documentation
  
  Detailed description in
  EdW 10/07