- on Home & Garden
- Published in issue 7/2008 on page 48
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CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.
R1-R30 = 6Ohm8/3 W
C1 = 10nF
C2 = 1000 µF 16V radial
D1 = 1N4004
LED1 - LED10 = Golden Dragon blue LB-W5KM-EZGY-35 from OSRAM
LED11 - LED20 = Golden Dragon green LT-W5KM-HZKX-25 from OSRAM
LED21 - LED30 = Golden Dragon red LR-W5KM-HXJX-1 from OSRAM
T1 à T3 = IRFI540NPBF, isolated
IC1 = AT90S8515P, Atmel, programmed with hex file from archive 071037-11.
K1 = 2 solder pins
K2 = 10-way DIL (2x5) pinheader
Heatsink for the 3 transistors (optional)
PC power supply
PCBs, ref 071037-1 (controller) and 071037-2 (LED) available from thepcbshop.com