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Old 11-02-2009, 06:13 PM #1
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Default this doide burned?

so i found a laser diode and i plugged it in my homemade driver and i started to roll my potentiometer to less resistance broblem was that wire from battery to driver didnt connect wery vell (cut in a middle and with hands pushing wires together) it didnt seem to ligth (i had camera to see if it was an ir diode)and suddendly when i moved wires it ligthed and turned off. i havent been able to ligth athat diode again. so is my diode "burned" now?

lol what a typo in title xD



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Old 11-02-2009, 07:04 PM #2
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Default Re: this doide burned?

Most probably, do you have a digital multimeter?
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Old 11-03-2009, 12:24 PM #3
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Default Re: this doide burned?

yes

can i see with multimeter if my diode is dead?
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Old 11-03-2009, 12:46 PM #4
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Default Re: this doide burned?

Yes, check the current going in the circuit, and measure the voltage over the diode pins.
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Old 11-03-2009, 01:52 PM #5
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Default Re: this doide burned?

i putted DMM to 200mA and putted red and black wires to between battery and driver and i didnt get any measures

i putted to 20V and putted red and black wires to diode pins and i didnt get any measure

am i doing this rigth?
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Old 11-03-2009, 01:56 PM #6
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Default Re: this doide burned?

Since you don't get any current or voltage it seems like either the battery is dead or the driver is.
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Old 11-03-2009, 01:59 PM #7
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Default Re: this doide burned?

batteries are not dead they run in 6V but what about driver i made that myself with DDLs instructions

how do i measure my driver to see if its dead?
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