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

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Toasted my first diode.

C

ChuangTzu

0
Joined
Dec 21, 2007
Messages
17
Points
0
Well, I guess if everyone will toast n diodes in their life, I can now look forward to only n-1 :).

As a friend of mine says, you can't learn anything without breaking something.
 





S

spinout059

0
Joined
Dec 20, 2007
Messages
119
Points
0
I ordered 5 diodes from senkat, within an hour of receiving i had toasted one..... I was putting it directly in a flashlight and while focusing i twisted too much and the positive and negative pins touched..... $30 down the drain....
 
X

xanatos

0
Joined
Nov 24, 2007
Messages
321
Points
16
Popped mine out of the socket that it was mounted in - out & in - maybe 10 milliseconds. Toasted. Now I solder them ALL. So far, only one cooked. Second one going strong. I was watching the spot on CLOUDS last night!

Dave
 
roSSco

roSSco

0
Joined
Dec 5, 2007
Messages
649
Points
18
xanatos said:
Popped mine out of the socket that it was mounted in - out & in - maybe 10 milliseconds. Toasted. Now I solder them ALL. So far, only one cooked. Second one going strong. I was watching the spot on CLOUDS last night!

Dave
Click to expand...

I fried one the same way. It must have come loose for just a millisecond. Turned it on and poof! Bright flash, then LED. :(

I will also solder them from now on. ;)
 
Gazoo

Gazoo

0
Joined
Jun 9, 2007
Messages
3,206
Points
38
Wow, you all have some catching up to do...I have ruined about 20 so far.. ;D And all for varying reasons, even a couple on purpose...I had to see how hard I could drive them. Like xanatos and roSSco, I ruined a few before I realized it was the socket causing the problem. So I solder everything since that happened.
 
W

wooooooolazer

0
Joined
Nov 9, 2007
Messages
1,045
Points
0
yep ive killed 4, one from getting plastic on the window them my circuit giving to much power and killing it, two from giving them 250ma or suposidly but i never measured so i prob gave it like 400ma nowing my luck, one from it reflecting back into it from the lense i was using, didnt know that would break it.

...lazer... ;D ;D ;D
 
B

BlueFusion

0
Joined
Aug 15, 2007
Messages
1,880
Points
0
spinout059 said:
I ordered 5 diodes from senkat, within an hour of receiving i had toasted one..... I was putting it directly in a flashlight and while focusing i twisted too much and the positive and negative pins touched..... $30 down the drain....
Click to expand...
If the + and - touched, it shouldn't kill the diode, as to the diode it just looks like the current was turned off! More likely you simply burned it out with no driver.
 
C

ChuangTzu

0
Joined
Dec 21, 2007
Messages
17
Points
0
BlueFusion said:
[quote author=spinout059 link=1198527318/0#1 date=1198528597]I ordered 5 diodes from senkat, within an hour of receiving i had toasted one..... I was putting it directly in a flashlight and while focusing i twisted too much and the positive and negative pins touched..... $30 down the drain....
Click to expand...
If the + and - touched, it shouldn't kill the diode, as to the diode it just looks like the current was turned off! More likely you simply burned it out with no driver.[/quote]
That's exactly how I fried this one.  It was lasing, the leads shorted for millisecond, and when it flashed back on it was just an LED.
 
C

chimo

0
Joined
Jun 20, 2007
Messages
650
Points
0
pocketfluff said:
Why would touching the pins together, with or without current kill it?
Click to expand...

Without current touching is fine. With current, you have to take in to account the transient response of the voltage regulator. It takes some time for the circuit to recover from sudden changes in the load (such as momentarily shorting the LD leads). During the recovery time, the voltage/current can spike in the output.
 
You must log in or register to reply here.




Top