lazeerer
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Hi All,
So After further testing you Need XXohm Not .25 ohms To get ~1.8A i will know exactly this weekend
Before YOU try Any of this, It is YOUR DECISION where you want to set YOUR DRIVER to. Iam testing 1.8A because that is where I Feel Comfortable setting MY 445nm laser diodes to at MAX. So the Decision is your.
I received 1 out of 4 different driver that iam going to be check out to see how they work Etc.
So here are the driver that i just got in the mail that iam using in this video:
>>DealExtreme: $6.97 3.6V~9V 800mA Regulated IC Circuit Board for Cree and SSC LEDs (4-pack)<<
The Drivers above are the little brother to these Driver here:
>>DealExtreme: $1.99 18V 5W Cree Circuit Board for Flashlights (16.8mm*5.5mm)<<
I believe the only difference between the two are the "Inductors".
This Drive comes stock around ~935mA.
All you have to do to mod this driver is simply place a Resistor in parallel to the "R27" Resistor. The only Resistor that i had on hand that was easier to figure out the math was 1 ohm resistors.
So what i did was i keeped placing 1 ohm resistor in parallel to the R27 resistor to see how much Amps could i get . Well i went all the way up to ~1738 with 4x 1 ohm resistors. This is only true to those reisistors that i was using, When further testing came it shows that you need a XXohms to get ~1.8A.
The 8 Pin Chip does get hot witch is to be expected just like any Driver. So a a little heatsink is all thats needed and you should be good to go.
To run this Driver at ~1.8A you Need XXohms.
In the video i had a 12v Computer Power supply hooks up, But i have tested it with 2X 18650 witch works well, and 2x14500 witch works well and Finally with 2x 3.0v lifepo4 cells witch works well but does not hold the 1.75amps steady. This could be due to my old cells.
Edit: For driver Above: DX Has Change the schottky diode to an SS14 it is only rated to 1A and should not exceed that in risk of damaging the driver and possibly killing your diode. My original board where with the SS34 schottky diode witch are rated to 3A. So make sure you know this... If it has a SS34 Diode your good. but SS14 Not good. I hate when they do this.
Stay tuned for these 2 drivers mods:
>>DealExtreme: $1.99 18V 5W Cree Circuit Board for Flashlights (16.8mm*5.5mm)<<
&
From Kaidomain.
>>http://kaidomain.com/ProductDetails.aspx?ProductId=1640<<
I will Post all the drivers and updates that i will test in this thread.
I want to see witch out of the 3 will be the best to use in hosts the take 2x + cells.
So i hope this helps anyone that want to give this a go.
Update: Driver 2
Hey All, :wave:
So i decided not to wait till these drivers come in and i took apart the laser i had this is to mod it and test it to see how well it works.
This is the Driver that iam using in this Video.
>>http://www.dealextreme.com/details.dx/sku.26110<<
Pay no Attention to the .25ohm resistor i say.
Heres the video:
So in conclusion I find that this driver is more stable and holds the current better at 2A then the ones that come in the 4 pack. But other then that they behave the same.
The driver still feels like it gets warm just as quick so heatsinking is a must just like any driver you are running a high current.
I have been using this driver for a few months now in one of my laser with no issues. I did not know about modding this driver so i just recently found this out that i could get 2A out of it with no issues.
You really cant go wrong with $2 dollars for the driver and capable of running at 2amps with minium of 6 volts 2x 3v cells "i used 2x 3.0v tenergy lifepo4 cells in one of the test and it works flawlessly" Right now i took the driver and put it in my 2W+ build witch iam still getting Over 2W still. "i ave to re test the output again with my DMM as the Display as my Display on my LPM only goes up to 2W":evil:
I heatsinked it to the pill were the LED was and i will tell you that it is doing a great job dissipating the heat from the driver.
If you Are going to run this driver pasts its stock settings you must heatsink it but you might get away with running it <1400mA.
Here are some Pictures i took of the Driver mounted in both host:
This is a Picture of one of the 4 pack drivers with just a 1 ohm resistor in parell of it.
Here is the driver that i just did this video you can see i add a small piece of aluminum to the 8 pin chip for 2 reason One so it can be level with the inductor to make .
Different angle. You can see the resistor that you will need to mod.
I Hope this Helps.
I also want to mention that Companys such as DX KD Etc tend to change up circuits and design. So Please Be aware of this.
So After further testing you Need XXohm Not .25 ohms To get ~1.8A i will know exactly this weekend
Before YOU try Any of this, It is YOUR DECISION where you want to set YOUR DRIVER to. Iam testing 1.8A because that is where I Feel Comfortable setting MY 445nm laser diodes to at MAX. So the Decision is your.
I received 1 out of 4 different driver that iam going to be check out to see how they work Etc.
So here are the driver that i just got in the mail that iam using in this video:
>>DealExtreme: $6.97 3.6V~9V 800mA Regulated IC Circuit Board for Cree and SSC LEDs (4-pack)<<
The Drivers above are the little brother to these Driver here:
>>DealExtreme: $1.99 18V 5W Cree Circuit Board for Flashlights (16.8mm*5.5mm)<<
I believe the only difference between the two are the "Inductors".
This Drive comes stock around ~935mA.
All you have to do to mod this driver is simply place a Resistor in parallel to the "R27" Resistor. The only Resistor that i had on hand that was easier to figure out the math was 1 ohm resistors.
So what i did was i keeped placing 1 ohm resistor in parallel to the R27 resistor to see how much Amps could i get . Well i went all the way up to ~1738 with 4x 1 ohm resistors. This is only true to those reisistors that i was using, When further testing came it shows that you need a XXohms to get ~1.8A.
The 8 Pin Chip does get hot witch is to be expected just like any Driver. So a a little heatsink is all thats needed and you should be good to go.
To run this Driver at ~1.8A you Need XXohms.
In the video i had a 12v Computer Power supply hooks up, But i have tested it with 2X 18650 witch works well, and 2x14500 witch works well and Finally with 2x 3.0v lifepo4 cells witch works well but does not hold the 1.75amps steady. This could be due to my old cells.
Edit: For driver Above: DX Has Change the schottky diode to an SS14 it is only rated to 1A and should not exceed that in risk of damaging the driver and possibly killing your diode. My original board where with the SS34 schottky diode witch are rated to 3A. So make sure you know this... If it has a SS34 Diode your good. but SS14 Not good. I hate when they do this.
Stay tuned for these 2 drivers mods:
>>DealExtreme: $1.99 18V 5W Cree Circuit Board for Flashlights (16.8mm*5.5mm)<<
&
From Kaidomain.
>>http://kaidomain.com/ProductDetails.aspx?ProductId=1640<<
I will Post all the drivers and updates that i will test in this thread.
I want to see witch out of the 3 will be the best to use in hosts the take 2x + cells.
So i hope this helps anyone that want to give this a go.
Update: Driver 2
Hey All, :wave:
So i decided not to wait till these drivers come in and i took apart the laser i had this is to mod it and test it to see how well it works.
This is the Driver that iam using in this Video.
>>http://www.dealextreme.com/details.dx/sku.26110<<
Pay no Attention to the .25ohm resistor i say.
Heres the video:
So in conclusion I find that this driver is more stable and holds the current better at 2A then the ones that come in the 4 pack. But other then that they behave the same.
The driver still feels like it gets warm just as quick so heatsinking is a must just like any driver you are running a high current.
I have been using this driver for a few months now in one of my laser with no issues. I did not know about modding this driver so i just recently found this out that i could get 2A out of it with no issues.
You really cant go wrong with $2 dollars for the driver and capable of running at 2amps with minium of 6 volts 2x 3v cells "i used 2x 3.0v tenergy lifepo4 cells in one of the test and it works flawlessly" Right now i took the driver and put it in my 2W+ build witch iam still getting Over 2W still. "i ave to re test the output again with my DMM as the Display as my Display on my LPM only goes up to 2W":evil:
I heatsinked it to the pill were the LED was and i will tell you that it is doing a great job dissipating the heat from the driver.
If you Are going to run this driver pasts its stock settings you must heatsink it but you might get away with running it <1400mA.
Here are some Pictures i took of the Driver mounted in both host:
This is a Picture of one of the 4 pack drivers with just a 1 ohm resistor in parell of it.
Here is the driver that i just did this video you can see i add a small piece of aluminum to the 8 pin chip for 2 reason One so it can be level with the inductor to make .
Different angle. You can see the resistor that you will need to mod.
I Hope this Helps.
I also want to mention that Companys such as DX KD Etc tend to change up circuits and design. So Please Be aware of this.
Last edited: