Power-up driver NUGM03 Diode

[toutan]

I have decided to power up this driver.

The current value before power-up is 1.22A.




Install a 470mΩ resistor.





The current value is now 1.72A.



The power meter reads 899mw.

Currently, there are few places where this driver is available.
I like this screwdriver very much.

 

[nmbusa]

straight or philips screwdriver???

 

[Z80 Lasers]

straight or philips screwdriver???

Perhaps a Torx?

 

[WizardG]

Pozidriv?

 

[nmbusa]

Pozidriv?

something for everyone

 

[toutan]

This driver does not have a variable resistor.
The original resistance is 200 milliohms.
If a 470 milliohm resistor is attached to this resistor, the value will be about 140 milliohm.
Because of the lower resistance, the current value will increase to about 1.75A.
Since the current that can flow through the NUMG03 diode is 1.8A, a constant-current circuit can be made inexpensively by using this driver and changing the resistance value in this way.
The price of this driver is about $3, but
There are few places to obtain it now.
Survival laser sites used to sell them for about $5.00, but now they are very expensive at $14.99.

 

[RedCowboy]

If you like round drivers then take a look at these, I have used several of them. Note they're several pages denoted on the bottom right of the page in light yellow print.

http://kaidomain.com/Flashlight-Drivers

Also some here.

Drivers

Drivers

www.mtnelectronics.com

I have also become fond of ali express.

https://www.aliexpress.com/w/wholesale-led-flashlight-driver.html

 

[Darktron]

Perhaps a Torx?

Security bit you mean?

 

[thanhtung]

this driver : how to mod ?

Iout = 0.25/R

R200 = 1.25A
R130 = 1.8A
R100 = 2.4A
....etc