Instructions

Table Of Contents
tams elektronik
English LC-Modules Next Generation
Example: Connection of 2 blue and 3 red LEDs with using a 18 V a.c.
transformer. Designated current: 20 mA:
nec. R
V
= (25 V – 4 V x 2 – 2 V x 3) / (20 mA x 0,001) = 550 Ohm
We choose the next resistor´s value which is provided as a standard,
which means a resistor of 560 Ohm. If using a resistor with a higher
value the current of the LEDs would be reduced and the LEDs would
light less brightly.
Tip: Connecting many LEDs to one LC-NG module
If you want to connect a large number of LEDs to one output of the LC-
NG module (e.g. for chaser lights or funfair lighting), it is best to
connect them as follows:
Connect as many LEDs in series as the available working voltage allows.
If you use an 18 V AC transformer, for example, you can connect 5
white or blue or 11 other-coloured LEDs in series. Reduce the current
by using an appropriate series resistor to such an extent that the
brightness of the LEDs still meets your expectations.
Page 28