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Old 09-15-2007, 04:08 AM #1
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Default resistor

this a little quiz type thing that helped me out on resistors a bit lol and i figured it may help a few other people
http://www.facstaff.bucknell.edu/mas...t/Resist2.html


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Old 09-15-2007, 05:05 AM #2
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Default Re: resistor

I found a program somewhere that you can select the colors and it will tell you the ohms.
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Old 09-15-2007, 05:24 AM #3
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Default Re: resistor

heres 1 like that http://www.dannyg.com/examples/res2/resistor.htm
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Old 09-15-2007, 02:28 PM #4
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Default Re: resistor

Those are EXCELLENT !!!!!
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Old 09-15-2007, 03:33 PM #5
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Default Re: resistor

this link lets you put in supply voltage and desired Ma

http://metku.net/index.html?path=mods/ledcalc/index_eng
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Old 09-16-2007, 01:16 AM #6
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Default Re: resistor

Here are some movie tutorial lessons for people who would like to get started.

http://tangentsoft.net/elec/movies/

There is also a nice section on the EAGLE CAD program for those a bit more advanced. It looks quite nice.
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Old 09-16-2007, 01:31 AM #7
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Default Re: resistor

ya i love those resistor colour calculator things! they help me alot sometimes
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Old 09-16-2007, 06:50 AM #8
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Default Re: resistor

I love the resources/people here.
You make it possible for others to learn and follow.
Thanks!
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Old 09-17-2007, 06:33 PM #9
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Default Re: resistor

What is thre Vdrop on most red laser diodes (senkat GB as a general) for the led resistor calc

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Old 09-18-2007, 01:53 AM #10
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Default Re: resistor

2.1-2.8v
180mA safe Max for >10,000 hours
From spec sheet.

Cheers [smiley=beer.gif]
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Old 04-16-2008, 08:28 PM #11
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Default Re: resistor

Hi,

I have an 780nm 200mW NIR laser diode. It runs using 130mA and 2.4V. I want to house this in a Dorcy Jr. and i was wondering what resistor and silicone diode i should use to lower 300mA to 130mA and 3V to 2.4V. How should i connect it? in series or parallel? I would really appreciate an answer.

Thanks

BTW, here is the data sheet for the NIR laser diode: www.zet.biz/Laser/Data/gh0780ma2c.pdf
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