http://i210.photobucket.com/albums/bb204/n00blord1/25052013075_zps769fcba0.jpg
I had a spare transformer so I decided to make a small power supply for my desk projects.. The plan was to go from 1.25-about 14V. The scheme above is what I came up with. I used LM317 online calculators to get the resistor values.
LM7805 part (intended for some chips) works great, no complaints there. But every pot i put in LM317 part ends up in flames. I also used fixed resistors, and they also burn.
What am I doing wrong? Why could it draw so much current?
I tried it with load too, still the same, resistor gets destroyed.
I had a spare transformer so I decided to make a small power supply for my desk projects.. The plan was to go from 1.25-about 14V. The scheme above is what I came up with. I used LM317 online calculators to get the resistor values.
LM7805 part (intended for some chips) works great, no complaints there. But every pot i put in LM317 part ends up in flames. I also used fixed resistors, and they also burn.
What am I doing wrong? Why could it draw so much current?
I tried it with load too, still the same, resistor gets destroyed.