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



what is max voltage of GB LD

toked323

New member
Joined
Sep 1, 2007
Messages
1,591
Points
0
what is max voltage of GB LD ?
 



Skram0

New member
Joined
Aug 25, 2007
Messages
280
Points
0
infinity. Or do you mean the max voltage until the diode blows? ;)
 

Gazoo

Active member
Joined
Jun 9, 2007
Messages
3,199
Points
38
;D Good answer. I don't like to think in terms of voltage with LD's. Only current... :p
 

pseudonomen137

New member
Joined
Oct 24, 2006
Messages
2,032
Points
0
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.
 

Benm

Well-known member
Joined
Aug 16, 2007
Messages
8,113
Points
113
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 ;)
 

toked323

New member
Joined
Sep 1, 2007
Messages
1,591
Points
0
say i put six 1N4001 diode on a circuit with a 9v wont it be suiteable for the LD since the drop of voltage?
 

Hemlock_Mike

Well-known member
Joined
Jan 7, 2007
Messages
6,284
Points
83
Toked --

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

Mike
 

a_pyro_is

New member
Joined
Aug 15, 2007
Messages
790
Points
0
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

New member
Joined
Sep 1, 2007
Messages
1,591
Points
0
i know about the current but i want to use 9v batts cause there cheaper
 

Gazoo

Active member
Joined
Jun 9, 2007
Messages
3,199
Points
38
toked323 said:
i know about the current but i want to use 9v batts cause there cheaper
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.
 

toked323

New member
Joined
Sep 1, 2007
Messages
1,591
Points
0
i know but like my dad uses them in his shop and gets energizer 4 for a dollar
 

o_DEATH_ANG3L_o

New member
Joined
Sep 7, 2007
Messages
634
Points
0
pseudonomen137 said:
[quote author=toked323 link=1191628939/0#6 date=1191726012]for 9v would i have to drop the voltage?
If your LD were a cat, 9V would end all 9 of its lives and then some.[/quote]

;D ;D
 







Top