Wtf - ???

[Rockwings]

This is my setup : ghost driver 2 at 350 mah, Sony diode 250mw can take up to 400 mah, aixiz module with focus able lens , 9v battery. The light seems really low, the soldering is fine. I just got these. What could be wrong?

 

[Blord]

Measure the output of the driver. If it is 350mA then your diode is LED.

Btw it is mA and not mah.

 

[lazeerer]

Link to where you bought the diode from.?

I have a feeling that the 250mW is Pulse and CW is either 100mW or 150mW.

 

[chipdouglas]

The problem is probably your batter. While it does provide enough volts. The current rating of the square 9v batts is about 100mah. Not recommended

Michael

 

[Elektrotechniker]

Throw away that 9V battery. They have caused me a lot of problems in the past. Very low capacity.

 

[lazeerer]

It should run a Red Just Fine if its brand New for a Little bit. Enough to see it Laze..

The diode is appears LED. Even if the 9v battery could not handle it, it would at least Laze with Partial of the output power.

In a pinch they will work. But better batteries would be a good idea.

 

[DTR]

The real problem with a 9V is not really the capacity but the discharge rate. Most discharge about 100mA or less and you have a diode that as you say is rated for 400mA.

The diode does look LED but there is also a chance that the driver is not supplying enough current to get above lasing threshold for the diode due to the battery. I am assuming you have not tested the output on a test load? That would be recommended before connecting it to a laser diode.:beer:

 

[Rockwings]

This is the diode. HighTechDealZ - 650nm 20x DVD Burner LPC815 Laser in Aixiz Module

 

[Rockwings]

Now it won't turn on at all. Could it be the driver?

 

[Rockwings]

I've tried 3 new 9v batts

 

[DTR]

If it went from dim to not at all you may have cooked it.:cryyy:

So did you test the driver on a test load or did you connect it to the diode right off?

 

[Blord]

Do you have a testload ? This little device is mandatory with any DIY build.

 

[cilegray]

Most likely is your diode that's been killed.

 

[lazeerer]

I Just tested a Cheap 9v battery with a load of 2.89v at ~400mA and it would be enough like i was saying for him to power this diode for a few minutes to see it Laze. After about 15 second it started to drop in currant slowly but still keeping above 300mA

I used a Simple LM1117 driver same set up as his just not the same manufactured of drivers.

He should have seen Light. My guess is he dint short the caps on the driver.

Reds are pretty sensitive to this.

 

[Blord]

Or he could overheated the diode. 350mA in that small module will overheat the diode fast.

 

[Rockwings]

On the part where the driver outputs power there's no reading, so my guess is the driver is dead