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Old 07-21-2009, 06:37 PM #1
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Question driver set up question

Hi
I'm just about ready to build my first laser and have a question
I will be following jayrob's tutorial for the pocket pal
I have all the parts I need but I'm sure I remember reading somewhere about shorting contacts/capacitors before attaching the diode ?

I have a flex drive,Phr-803T Diode and will be using the driver test load from this thread Driver Test Load for PHR-803T Schematic

any tips ?


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Old 07-21-2009, 07:01 PM #2
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Default Re: driver set up question

Set the driver current (using a test load) to ~90-110 mA. Use any small piece of metal to touch both laser diode pads on the flexdrive simultaneously. That will bleed off any residual charge left on the board.
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Old 07-21-2009, 07:05 PM #3
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Default Re: driver set up question

brilliant thank you
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Old 07-23-2009, 06:04 AM #4
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Default Re: driver set up question

Quote:
Originally Posted by ElektroFreak View Post
Set the driver current (using a test load) to ~90-110 mA.
Quote:
Use any small piece of metal to touch both laser diode pads on the flexdrive simultaneously. That will bleed off any residual charge left on the board.
(while the FlexDrive is OFF only
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Old 07-25-2009, 05:04 PM #5
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Default Re: driver set up question

It works thanks guys
just a quick question I set up the driver using three rechargeable battery's
if I switch to non rechargeable battery's will the driver still output the same current ?

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Old 07-25-2009, 05:05 PM #6
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Default Re: driver set up question

hmmmm Dr ?/
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Old 07-25-2009, 05:13 PM #7
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Default Re: driver set up question

What did you end up setting your current at? Regardless of your answer I am now going to attempt to pressure you to turn it up further :P. your build looks great. Good job!

-Mike
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Old 07-25-2009, 05:25 PM #8
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Default Re: driver set up question

Quote:
Originally Posted by cust11 View Post
What did you end up setting your current at? Regardless of your answer I am now going to attempt to pressure you to turn it up further :P. your build looks great. Good job!

-Mike
I set it at 100ma as it is my first build
It is also the first thing (heatsink) I have managed to make on my mini lathe
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Old 07-25-2009, 05:27 PM #9
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Default Re: driver set up question

Nice machine work! If my matchbox I call a house had a garage I would love a few machine tools like a lathe and a small mill / drill press.

-Mike
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DL V-75 75mW Green handheld
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