What's that little board over there?

[luccax]

I bought this 100mw red laser module from ebay... I received it and i tested with a power adapter of max 1A~5,2V but it's specifications are 4,2V

Whats that board inside the module? Is it a driver? (picture below) Can i use 5,2v without burning it?

Picasa Web Albums - lucca xavier

 

[JLSE]

Increasing the voltage will most likely force more current.

Depending on the diode, it may p0p...

 

[luccax]

But look at the pic, whats that board there? Is it a driver?

 

[LtKernelPanic]

If you mean the board the wires are attached to yes that is the driver. Without knowing the specifics of it it's hard to say for sure if it can take 5.2v without suffering damage.

 

[Eudaimonium]

Driver looks identical to the one found on common 200mW Dilda lasers.

Driver should be made to regulate current, provide constant current source no matter the input, as long as it's within specifications.
Increasing input voltage and getting more current out is very bad driver in my book.

I think that 6V of input would not hurt the laser, if it's the same driver as Dilda one.

However, it may be a different driver.

Why not just use it within specifications?

 

[luccax]

I will use 4,2V... i just wanted to know if that's a driver!

Where can i buy cheap glasses for 660nm?

 

[HIMNL9]

Ofcourse yes ..... from the pic, it seem a linear driver with an op-amp, probably a sink or a source current driver (but i can't say it more precisely what type of driver is, without detailed pics from front and back).

 

[Cyparagon]

If you increase the voltage, you will at least increase the heat generated in the driver which can damage components.