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Need serious help with LED + voltage problems

Name: ZETA SHINTANi 2005-08-20 4:11

Oki here's my situation. I'm currently making a Beatmania IIDX controller, and I ordered LED microswitches from a certain company. The LEDs on the microswitches run on 3.2-3.8 volts per LED. I have 9 buttons (7 for gameplay, 2 for the start and select), and so they are all soldered to the PCB, and to each other.

This is the diagram i'm using for this project.

http://home.ripway.com/2004-1/54890/12.jpg

Now, there's a lot of things I need to know concerning the voltage and how everything should connect. I made this diagram after looking at another diagram that was made for putting in a light kit for microswitches on a pop'n music controller. It works the same way as a IIDX controller, but I'm still unsure. Now for the questions.

1) Since all LEDs are chained together does that mean my power source will have to be in the range "OF THE TOTAL VOLTAGE OF ALL THE LEDs" combined?

2) Previously, I connected all the lights together, which altogether their total voltage should be in the range of 28.8-34.2 I gave it a power source voltage rating of 34.5, tried 3 of the LEDs and they burnt out. I'm going to have the LEDs replaced, but they are going to be replaced with bulbs of a different voltage rating. 2 bulbs will be 1.7-2.4 volts, and the other bulb is 3.6-4.0 volts. Since these bulbs have a different voltage rating than the other lights, should they have resistors connected to them of some sort? I heard of using them but I don't know how they work.

3) If there's any connection problems that you see in the diagram, please tell me because I have to know.

Name: ZETA SHINTANi 2005-08-23 1:17

http://www.controllica.com/spare_parts/spare_parts.html

LED specifications are there. As I've stated before, 2 of the LEDs will have 1.7-2.4 volt bulbs and one will have 3.6-4.0 bulb. the other 6 will have the normal ones.

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