what driver is better??

so im gana build a laser and i came across to 2 differnt drivers, the flxdriver and the micro driver...

whats better, the flexdriver or the micro driver??

What driver you use is largely dependant upon which host you planning to use. If you are planning on a single cell type then the Micro Flex drive would be the correct way to go. If you are planning on a host that holds more then 1 battery then the Micro-Drive may be the better option. They are both good drivers.

CRFultz said:

What driver you use is largely dependant upon which host you planning to use. If you are planning on a single cell type then the Micro Flex drive would be the correct way to go. If you are planning on a host that holds more then 1 battery then the Micro-Drive may be the better option. They are both good drivers.

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Can you post some schematics?

I can`t find on the seach?

I just found this!

and this!

this is the DDL driver (Daedal). a forum member is the one greatly responsible for this driver. it uses a lm317 as a voltage regulator and requires 3V above what the laser diode uses. this driver can be built using radioshack parts. easy to build just connect the dots (terminals / wires) as in the schematic.

here is a good thread...read it.
http://www.laserpointerforums.com/forums/YaBB.pl?num=1185701612/0

Thanks WonHungLo!

When making a correct adjustment of the current in the diode, this circuit can be used to any red diode and blueray?

Hug,
Andre Garcia

I haven't had much luck with the DDL driver, I succeeded in a couple but for some odd reason couldn't get it EXACTLY the way I want.  

So, it depends on your host.  Do you want small, with minimal battery space?  Use flex drive, it has a booster circuit that can take 3.7V up to around 9V IIRC (somebody jump in if I'm wrong).  SO, you don't need as much power, but the battery gets drained pretty quickly that way.  I personally don't like these builds because I guess I just have the "flex drive" bad luck bug, every one I've owned has failed the longetivity test by killing my LD, even one driver went bad.   (and I've had 3)

I prefer the rkcstr driver, it has a regulator as well, but it doesn't boost the voltage so you need a larger host for additional batteries.  This is the way I go because I believe that every portable electronic device is only as good as the battery power behind it.  They last A LOT longer on a single charge, and there is no amplifier sort to speak boosting the current to the LD.  The biggest con is that it requires more batteries (which is a pro in my book) and you have to use larger hosts so it won't be as portable.  

since the flex driver is out of stock... which micro rkcstr driver should i get, the fixed current or the adjustable current??

I currently use the DDL and micro rkcstr driver. Both are excellent, in my opinion.

I got high values with both.

I also have a DX module, but only use for experiments using regulated power supply with big heatsink.

The DLL driver I am trying reduce size of pcb without using SMD components. :'(


Hug,
Andre

whats the DX module... sorry im a noob

flipinflopin said:

whats the DX module... sorry im a noob

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Its a module that I bought at DealExtreme.
An extra function that he is the TTL. However, its size is big to make it portable.

Hug,
Andre

what MA should the driver be, if i want the blu ray laser to push out 140mw??

and what kind of diode is this, http://www.lasersurplusparts.com/index.php?main_page=product_info&cPath=1&products_id=57 a green, red or blu ray

flipinflopin said:

what MA should the driver be, if i want the blu ray laser to push out 140mw??

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If its a phr803T the diode will blow.

You will need a 4x or a 6x at around 140-160ma.

so whats a suggested MW, 120mw??

and is this a green diode, Sony High Power AlGalnp Laser Diode SLD1239JL-54??

flipinflopin said:

so whats a suggested MW, 120mw??

and is this a green diode, Sony High Power AlGalnp Laser Diode SLD1239JL-54??

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green lasers are dpss. im not sure of the part number but if its a sony diode its probably a red or ir(most likely a red)