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built my first lm 317 circuit - what did I do wrong?

ashenfang

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Title says it. Built it last night using a single resistor circuit. However, when i turn it on i am getting 8.5 volts LD Out. I attemped to check current using 6 diodes and a 1 ohm resistor in series as load, but not getting anything. Something doesnt seem right. I have included 2 pictures. One of the final board and the other showing exactly how i have the pins soldered to one another. Im a circuit noob so please bear with me.



 

Cyparagon

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The first glaring problem I see is that you are bypassing the LM317 completely.

(Also, if that thing to the right of the capacitor is a diode, you're drawing it wrong)
 

ashenfang

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Thanks for pointing that out. Would you be kind enough to show me where i am going wrong? And yes, that is a diode to the right of the cap.
 

Gryphon

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^Yes, assuming the left and center pin are "adj" & "out" and the left pin for power is "in."
 

ashenfang

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Ok that makes sense. So the reg. Does not get grounded, it simply stays "positive"? So v in is voltage in and the other two pins are bridged together with a resistor which is also tied to positive?
 

Cyparagon

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Yes. I can be used in a grounded fashion, but then it regulates voltage instead of current.
 




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