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toked323

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ok so i recieved senkats GB diode yesterday and i hooked it up to daedals circuit and it shines dim but i put an LED and it shined normal can anyone offer me help
 

Things

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maybe try turning the pot a little bit? not to far, just see if the diode gets brighter?
 

toked323

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i dont have a pot i have a 5 ohm resistor in series with the 4 ohm instead of the pot shold i put the 5 ohm in paralel?
 

Things

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try it?i'm not exaclty shure how you have it configured, but make shure to try it on a led first!
 

Gazoo

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toked323 said:
i dont have a pot i have a 5 ohm resistor in series with the 4 ohm instead of the pot shold i put the 5 ohm in paralel?
If you have everything wired correctly, it should work.
 

Things

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an LED doesn't require quite as much as a LD, so if the led is on, your LD should be on, but not very brightly. what colour LED are you using?red?,white?, blue?, yellow?
if i recall corectly, red is about 1.5V yellow is about 2V and blue/white is about 3V
 
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That would be 9 ohms. I put two 5 ohm resistors in PARALLEL for 2.5 ohms and mine lases great at 160 mA. So take the resistors and put them in PARALLEL.
 

a_pyro_is

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Death Angel said:
That would be 9 ohms. I put two 5 ohm resistors in PARALLEL for 2.5 ohms and mine lases great at 160 mA. So take the resistors and put them in PARALLEL.
??? :-? Are you using a 317 to regulate? or is that just a current limiting resistor?
 
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I am using Daedal's circuit and I measured the resistance of the pot at 160 mA. It was roughly 3.0 ohms. So I just replaced the pot with two 5 ohm resistors in parallel.
 

a_pyro_is

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Death Angel said:
I am using Daedal's circuit and I measured the resistance of the pot at 160 mA. It was roughly 3.0 ohms. So I just replaced the pot with two 5 ohm resistors in parallel.
Or is that a 3 Ohm in series with a 4.7 Ohm for 7.7 Ohms and 165mA?
 

xgeek

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Unless you wired you LM317 wrong then the only way to limit to 165mA is to use a 7.7 ohm resistor as a_pyro_is said. 2.5 ohms will limit at .500mA.

It's a simple formula with the LM317:-
1.25 / resistance = mA
 

toked323

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i used a 5ohm resistor and get between 200-250mA the prob was i used daedals ciruit the wrong way with out checking the pins for the lm317
 




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