All Questions
14
questions
2
votes
2
answers
201
views
The functionality of a driver circuit
I was requested to make a laser driver circuit for a course project. After some research, I found this circuit.
Can someone explain how this circuit works? What is 1R (R5&R6)? Can it be replaced ...
3
votes
1
answer
369
views
85W laser array driver circuit
I have an OSRAM 85W 450nnm laser array.
It's essentially a large 'chip' with 24 integrated laser diodes (break it down they're approx 3.5W diodes each.) The Chinese source I purchased it from also ...
- 39
0
votes
2
answers
426
views
Do I need a driver for a single laser?
I want to hook up a 9v battery to a laser diode(linked to the ones I will get), but have seen laser drivers scattered across the internet and vaguely have heard of them. Do I need one to use the laser?...
- 121
1
vote
1
answer
1k
views
Driving a butterfly package DFB laser
I want to drive a DFB laser in a type-2, 14-pin butterfly package. The manufacturer has provided limited information on how to bias the laser diode and could not get any information on the reference ...
- 21
1
vote
2
answers
3k
views
Driving a laser diode with an LM317
I want to make a a line of sight sensor. I want to drive a laser diode with constant current and aim it at a photodiode, then using a transimpedence amplifier I will monitor any changes in light ...
5
votes
2
answers
488
views
Disable buck regulator output on startup and hold enable pin high for 1.5-2ms
I have a learning opportunity that I need some help with :)
I have current regulator design I put together using the LED2001 IC for driving laser diodes. This is mounted on top of a heatsink module ...
- 53
2
votes
1
answer
378
views
Need help with Laser Driver Voltage with Specific 3-PIN Diode
Thanks for reading. I was hoping someone could help me with the electronics of my project. So I am trying to drive a L980P200 - 980 nm, 200 mW, Ø5.6 mm, A Pin Code, Laser Diode. Link to spec sheet ...
- 21
1
vote
1
answer
646
views
Multiple laser diodes in series using a driver board
I couldn't find this in the search so I hope that I'm not repeating a question that's been asked already. I'm using a driver board that monitors the photodiode feedback in a laser diode to maintain ...
- 11
2
votes
1
answer
450
views
Laser diode driver at high currents
I have a fiber array package laser diode which draws 30A at 2.8V. I would like to use it in a laser cutter project, but I don't know how to go about designing a power supply for it.
I came up with ...
- 21
1
vote
2
answers
2k
views
3.1 volt 400 mA laser driver
I've done quite a bit of searching here and on Google, but I think I still need help.
Using either of these power supplies: 12V 1A or 5V 2A
How can I build a circuit to drive a laser diode with ...
- 113
1
vote
1
answer
2k
views
4,5V 650nm laser, will I need a driver?
I just bought a package of 100 laser diodes on eBay:
http://www.ebay.com/itm/110887381932?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
My first question is: Will they need a driver? Can't ...
- 289
2
votes
1
answer
2k
views
how to drive a VCSEL?
I want to drive a VCSEL with the MAX3795 driver, but this ship has a very complicated circuit on it pins.
Is there is another available driver with a simpler circuit that i can use ?
- 69
1
vote
1
answer
1k
views
Question about laser driver
If you go to this link you see a nice laser driver for a small laser...didn't he mean to put that diode in series with the + and - or is it supposed to be parallel and I"m just not understanding for ...
- 13
6
votes
2
answers
3k
views
Laser driver circuit
I like to build a laser pointer driver circuit that I can drive from an 8 bit uC. However, I like to get light output fairly constant. This requires for me to look at the photo detector (these lasers ...
- 2,862