Old 08-24-2015, 03:32 PM #1
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Default Test Load Simulated Diodes?

I am using the Osram PLP450 450nm Laser Diode. How many diodes should I simulate with the 3A Selectable Test Load Summary from SurvivalLaserUSA, I know I asked this before I just want to confirm. Feel free to help out.


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Old 08-24-2015, 05:03 PM #2
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Default Re: Test Load Simulated Diodes?

Look up what the forward volts are on the data sheet. Then select theright amount of diodes to simlate said forward volts. Prolly in the 4-5 diodes range
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Old 08-24-2015, 08:27 PM #3
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Default Re: Test Load Simulated Diodes?

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Originally Posted by 10fenny View Post
Look up what the forward volts are on the data sheet. Then select theright amount of diodes to simlate said forward volts. Prolly in the 4-5 diodes range
I checked I didnt understand it.
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Old 08-24-2015, 08:53 PM #4
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Default Re: Test Load Simulated Diodes?

It shows an operating voltage of 5.8. Ill check my notes when im home and see if that matchs. Seems a lil high for a blue diode
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Old 08-25-2015, 01:11 AM #5
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Default Re: Test Load Simulated Diodes?

Quote:
Originally Posted by 10fenny View Post
It shows an operating voltage of 5.8. Ill check my notes when im home and see if that matchs. Seems a lil high for a blue diode
how do you know how many volts your diode requires.
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Old 08-25-2015, 04:19 AM #6
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Default Re: Test Load Simulated Diodes?

Look at a data sheet or have notes from someone. I actually dont have the exact volt drop aka forward volts for this exact diode. For that exact test load it takes a few diodes to drastically change the volt drop. My other notes show the range of 4.8 to 5.3 volts for a lot of 445ish diodes!
Try four to five diodes and use a multimeter to see how many volts its running and go from there. I think thats about how many diodes i used in a few recent same diode builds
Im still pretty new to this, yet not aftaid to burn diodes!

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Old 08-25-2015, 01:24 PM #7
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Default Re: Test Load Simulated Diodes?

No No No! There's no data sheet yet for that diode, that is a new diode, and yes the voltage is high, DTR's testing shows it at about 6.3-6.4V. Use 8 diodes on the test load.

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Old 08-25-2015, 01:47 PM #8
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Default Re: Test Load Simulated Diodes?

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Originally Posted by Pi R Squared View Post
No No No! There's no data sheet yet for that diode, that is a new diode, and yes the voltage is high, DTR's testing shows it at about 6.3-6.4V. Use 8 diodes on the test load.

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Old 08-25-2015, 02:47 PM #9
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Default Re: Test Load Simulated Diodes?

My bad. Thanks alan
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Old 08-25-2015, 07:39 PM #10
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Default Re: Test Load Simulated Diodes?

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Originally Posted by Blastertron221 View Post
how do you know how many volts your diode requires.
how about we call laser diodes, laser diodes or ld's and diodes, diodes.

I think it will help clear up any confusion in the future.

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