by DrZarkov » Sun Jan 20, 2013 11:19 pm
For some new experiments I need two dirvers, so I ripped one of Klaas' simple drivers out of a previos made TV-set and made a new one. Both drivers are connected to an array of 8 LEDs (Nichia high Quality, 22000 MCD). The drivers are working well, but the LEDs are quite dark, much darker than I'm used from a "common" club driver. The 8 LEDs are connected like in the new NBTV handbook descripted. The input Voltage of the LEDs are 20 V (like in the handbook), I've measured the output (connected to the BUZ11 middle connector), giving 10 V, like in the handbook. Both drivers are practically identical, using the same kind of LEDs.
Is it just a mistake of this LEDs, not compatible with the driver, or could there be anything else wrong?