Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

How to Register on LPF | LPF Donations

what is max voltage of GB LD






;D Good answer. I don't like to think in terms of voltage with LD's. Only current... :P
 
Depends on the diode. Each will be different even if they're from the same batch. The spec sheet should list a typical, max, and min voltage.
 
Depends on the temperature too... and you'll get higher current for a given voltage as temperature goes up, sort of guaranteeing a blow out if the voltage supply is solid. Only the fact that batteries have internal resistance saves those minimag lasers ;)
 
say i put six 1N4001 diode on a circuit with a 9v wont it be suiteable for the LD since the drop of voltage?
 
Toked --

As said here many times -- Forget the voltage and monitor the CURRENT.
6 diodes would give about 4 volts drop.

Mike
 
Just go build the LM317 circuit. It'll cost around 10 USD and WILL save your diode from an early grave. It's an EASY build, the circuit is small enough to fit in many flashlights, only real downside is it needs about 6 Volts to run... But 2 CR123As will run it for quite some time.
 
toked323 said:
i know about the current but i want to use 9v batts cause there cheaper
Click to expand...

Well no that is not true. The 9 volt battery might run the diode for a few minutes if you are lucky. So buying bigger batteries, and more of them, will be much cheaper in the long run.
 
i know but like my dad uses them in his shop and gets energizer 4 for a dollar
 
pseudonomen137 said:
[quote author=toked323 link=1191628939/0#6 date=1191726012]for 9v would i have to drop the voltage?
Click to expand...

If your LD were a cat, 9V would end all 9 of its lives and then some.[/quote]

;D ;D
 
You must log in or register to reply here.


Back
Top