bradix14
0
- Joined
- Dec 21, 2013
- Messages
- 7
- Points
- 0
Hi all,
I've been reading the forum for some time now and just recently joined. Thanks for all the info so far.
I've been scouring the web and the forum for a couple of specific things I need some help with. Sorry if I am reasking things that may have been addressed 100s of times. I just can't find it if it has.
I've built my laser driver probably 4 times and can't get good readings. I've followed 2 or 3 different guides.
http://laserpointerforums.com/f67/laser-driver-ddl-schematic-60077.html
Laser driver - It can be done
and more here on the forum.
There are a few basics I don't understand - what is my output voltage supposed to be with this LM317 driver? I consistently get .7 volts lower than whatever I'm putting in. I've tried it with 7,9, and 12 volts. Isn't it supposed to be a fixed output?
Also, what do good output readings look like from a test load? I usually get almost 0 volts. What should I be seeing?
I'm building the standard dvd burner diode laser with the LPC826.
I've been reading the forum for some time now and just recently joined. Thanks for all the info so far.
I've been scouring the web and the forum for a couple of specific things I need some help with. Sorry if I am reasking things that may have been addressed 100s of times. I just can't find it if it has.
I've built my laser driver probably 4 times and can't get good readings. I've followed 2 or 3 different guides.
http://laserpointerforums.com/f67/laser-driver-ddl-schematic-60077.html
Laser driver - It can be done
and more here on the forum.
There are a few basics I don't understand - what is my output voltage supposed to be with this LM317 driver? I consistently get .7 volts lower than whatever I'm putting in. I've tried it with 7,9, and 12 volts. Isn't it supposed to be a fixed output?
Also, what do good output readings look like from a test load? I usually get almost 0 volts. What should I be seeing?
I'm building the standard dvd burner diode laser with the LPC826.