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help with driver build..

mikeyd2400

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May 25, 2020
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otay im ordering a sld laser diode. i have experience with led and electronics but first for building a laser driver.. my output im looking for is max of 5v and 2.3amps.. im not sure on power source yet, as i can step down the power if needed.. but the circuit for the driver im wondering about.. if its easier just to assume a 12v power supply that would be ideal.. im looking to make 2 different applications, work light and car taillights..
 



tedcs

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Jul 27, 2012
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otay im ordering a sld laser diode. i have experience with led and electronics but first for building a laser driver.. my output im looking for is max of 5v and 2.3amps.. im not sure on power source yet, as i can step down the power if needed.. but the circuit for the driver im wondering about.. if its easier just to assume a 12v power supply that would be ideal.. im looking to make 2 different applications, work light and car taillights..
If starting from 12V... I might be inclined to do something quick and dirty, like a 5 volt regulator or just resistors. One gets no extra credit for making something efficient. Throw in a capacitor and resistor to deal with transients. Good enough is the enemy of better.

Laser tail lights? Sounds cool and/or a good way to get yourself some trouble, or maybe not if you don't go wild with it.
There is a lot of random good stuff on this site. Seek and ye shall find, or something like that.
 

mikeyd2400

New member
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May 25, 2020
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If starting from 12V... I might be inclined to do something quick and dirty, like a 5 volt regulator or just resistors. One gets no extra credit for making something efficient. Throw in a capacitor and resistor to deal with transients. Good enough is the enemy of better.

Laser tail lights? Sounds cool and/or a good way to get yourself some trouble, or maybe not if you don't go wild with it.
There is a lot of random good stuff on this site. Seek and ye shall find, or something like that.
thank u.. and laser as for a light source, the sld laser is a phosphor laser light.. and thanks i get into looking
 

Encap

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May 14, 2011
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Nobody in LPF does anything with or has any experience with SLD's devices and you provide no data sheet about it so...
Common sense--contact SLD and/or whoever you are ordering the SLD device from and ask about power requirements and if a "laser diode driver" is needed for constant current,model , and where to get. Obviously it's creators would know much better than people who have never seen or used SLD devices.
See: https://www.sldlaser.com/contact

If all you want is a 12DC to 5VDC converter for automotive use see: https://www.ebay.com/sch/i.html?_fr...esc=0&_odkw=12vdc+to+5vdc+converter&_osacat=0

You better check with local Dept of Motor Vehicle and US DOT to find out if whatever it is you want to do with tailights complies with laws/regulations about same if you mean automotive which have strict legal regulations--pretty sure you can't mess with tailights without being in violation---if you are meaning bicyle then maybe OK

Here is a red rear fog light for $8.99 if that will do: https://www.amazon.com/Laser-Light-Warning-Anti-Collision-Taillight/dp/B007HUIYOA
 
Last edited:

tedcs

Member
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Jul 27, 2012
Messages
47
Points
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thank u.. and laser as for a light source, the sld laser is a phosphor laser light.. and thanks i get into looking
Good plan
From Encap's reply, I decided to look up the SLD light. The technology looks good, when it's available. It should be no problem making, or buying a driver for these without great expense.
 




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