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Old 03-27-2012, 05:38 PM #1
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Question I think I've killed my Flexdriver.

I have soldered Micro Flexdriver for set the ampere to 500mA-1.5A.

and wires were also soldered.

And after that I was in contact with the diode for the test.

However, the diode did not respond.
(The diode is a new one.)

This was my first soldering though.

but I thought I did it well....what the problem

Overheating the board or what else?


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Old 03-27-2012, 05:50 PM #2
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Default Re: I think I've killed my Flexdriver.

can you post a detailed photo of your driver setup and solderings
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Old 03-27-2012, 05:52 PM #3
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Default Re: I think I've killed my Flexdriver.

did you short out the caps before soldering the diode?
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Old 03-27-2012, 05:54 PM #4
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Default Re: I think I've killed my Flexdriver.

sure I did
but I didn't soldering the wire with diode
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Old 03-27-2012, 06:00 PM #5
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Default Re: I think I've killed my Flexdriver.

I wrote this post in mobile so I can't upload the pic

the soldering is look bad but I think connecting is well done.
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Old 03-27-2012, 06:12 PM #6
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Default Re: I think I've killed my Flexdriver.

Quote:
Originally Posted by LBPark View Post
sure I did
but I didn't soldering the wire with diode
you mean you operated the driver without load?
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Old 03-27-2012, 06:25 PM #7
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Default Re: I think I've killed my Flexdriver.

o <- diode
||
ㅁ <- driver
/ \
1.2v aa x3

looks like this

Is this wrong connection?
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Old 03-27-2012, 08:14 PM #8
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Default Re: I think I've killed my Flexdriver.

Quote:
Originally Posted by LBPark View Post
o <- diode
||
ㅁ <- driver
/ \
1.2v aa x3

looks like this

Is this wrong connection?
What he is asking is did you power the driver and then connect the diode. If so you for sure have killed your diode and possibly the driver as well. Also if you are not using soldered connections to your diode you again have probably killed the diode.

Any loss of connection to the diode even for a microsecond will charge the cap and then discharge into the diode killing it.
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Old 03-28-2012, 07:39 AM #9
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Default Re: I think I've killed my Flexdriver.

How can I check the diode is dead?

I think it's dead but there is hope isn't it?
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Old 03-28-2012, 08:18 AM #10
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Default Re: I think I've killed my Flexdriver.

Quote:
Originally Posted by LBPark View Post
How can I check the diode is dead?

I think it's dead but there is hope isn't it?
if you have a constant current PSU you could try connecting it directly to the diode. Be Sure that it is off first
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Old 03-28-2012, 09:27 AM #11
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Default Re: I think I've killed my Flexdriver.

you mean this?


How should I set?

I don't have much knowledge about this
I am really hard to make a laser.

just thank you for your help.
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Old 03-28-2012, 09:39 AM #12
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Default Re: I think I've killed my Flexdriver.

Quote:
Originally Posted by LBPark View Post
you mean this?


How should I set?

I don't have much knowledge about this
I am really hard to make a laser.

just thank you for your help.
No. Thats a multimeter. A very handy tool to have as well.

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Old 03-28-2012, 09:44 AM #13
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Default Re: I think I've killed my Flexdriver.

I got it

thank you very much
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