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RSS > IR-Diode LD 274, Circuit

ROOB1984	#1 06/07/2008 - 17h58 Top
Class : Apprenti Posts : 4 Registered on : 06/07/2008 Off line	Hallo I'm looking for a circuit with 3 IR-LEDs (Simens LD274). I've tried an circut with 3 LEDs, but nothing happend. I had 6V, 800mA supply from an Addapter, and put the tree diodes in serie with an 12 Ohm Resistor in line, but no one of them worked. After that i triedto make on shine, but i doesn't work. I'm not shure that i haven't make a mistake with my calculations with the diodes. I want to make a 3 point cap with an switch, that i can let all tree leds shine, or just one of them. I hoppe sombody can help me
ROOB1984	#2 08/07/2008 - 15h32 Top
Class : Apprenti Posts : 4 Registered on : 06/07/2008 Off line	Ok i've an idea. I make an new circuit with an switch. in the first route i put two IR diodes 1,5V and an resistor with 30 Ohm, the current shud be 0,1A. So i make the secound route with an IR diode 1.5V and an resistor 45 Ohm, this shud work, i hope so. Let's see it after i've tryed, it will take some time.
ROOB1984	#3 11/07/2008 - 18h35 Top
Class : Apprenti Posts : 4 Registered on : 06/07/2008 Off line	My secound Idea worked fine. But i thought with the IR LEDs i could use it with roumlight. So it works fine without roumlight.

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