Hello, I've been reading this forum for a while now and I finally made myself to try making one of easier current regulators with LM317.
So I started yesterday, gathered all the info of what components I need. I bought all the stuff and started soldering today. I just finished all the work. It's all messy and takes a lot of space, but I just want to get it working for the first time
Here are the pics:
http://imageshack.us/a/img541/6928/img2674m.jpg
http://imageshack.us/a/img812/3197/img2673re.jpg
http://imageshack.us/a/img202/7150/img2676dj.jpg
Here are schema I painted to make ir more clear to understand:
http://img577.imageshack.us/img577/5360/img2676schema.jpg
I've done this like it's explained here Laser driver - It can be done
I connected power supply, turned on the switch, the LED indicator is working and everything seems to work. 100 ohm Pot was set to around 50% (50 ohm). But I measured the output Voltage and it was ~9V. Input Voltage was ~11V from power supply.
Shouldn't it be around 3-4 Volts at the output? I haven't tried to connect my Red Laser Diode yet, since I am not sure if it's working correctly.
Any ideas about my driver? Is i soldered in the correct way?
So I started yesterday, gathered all the info of what components I need. I bought all the stuff and started soldering today. I just finished all the work. It's all messy and takes a lot of space, but I just want to get it working for the first time
Here are the pics:
http://imageshack.us/a/img541/6928/img2674m.jpg
http://imageshack.us/a/img812/3197/img2673re.jpg
http://imageshack.us/a/img202/7150/img2676dj.jpg
Here are schema I painted to make ir more clear to understand:
http://img577.imageshack.us/img577/5360/img2676schema.jpg
I've done this like it's explained here Laser driver - It can be done
I connected power supply, turned on the switch, the LED indicator is working and everything seems to work. 100 ohm Pot was set to around 50% (50 ohm). But I measured the output Voltage and it was ~9V. Input Voltage was ~11V from power supply.
Shouldn't it be around 3-4 Volts at the output? I haven't tried to connect my Red Laser Diode yet, since I am not sure if it's working correctly.
Any ideas about my driver? Is i soldered in the correct way?