Kinkajou Design Journal

Kinkjou Delta: Driver Circuit Design Files

Constant-current power supply for Luxeon 5W LED with low-voltage warning and shut-off

Software Documentation, as shipped to Mali in first 45 prototypes, November 2004
Author: Tim McNerney
Revision: 12/14/2004 17:21

Functional overview
The microprocessor-based driver circuit for a 5W Luxeon LED implements
a constant-current power supply, with automatic shut-off if the
battery falls below approximately 10.5V, and visible warning below
approximately 11V.

kled-doc.txt - documentation for the software and hardware design

main.c - software source code

kled-rev1-final.zip - a zip archive of the Gerber file
kled-rev1-schematics.pdf - a PDF copy of the circuit schematic
led-driver-rev1-07-29-04-2145.ddb - Protel 99SE CAD database (original source of the schematics and PCB artwork)

led-bom.xls - original (working) bill of materials

led-bom-for-assembly.xls - bill of materials tailored for assembly

Posted by Matt Eckelman at April 28, 2005 05:07 PM