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Old 10-19-2010, 01:27 AM #1
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Default Temporary power supply for my diode?

hey guys, i just got my first 445 diode but i dont have a driver yet. im asking if theres anything i can use to see if the diode runs fine or not. please reply back thanks!


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Old 10-19-2010, 01:43 AM #2
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Default Re: Temporary power supply for my diode?

Make a LM317 driver.... it will cost about $3 in parts and all components can be bought at radioshack
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Old 10-19-2010, 01:57 AM #3
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Default Re: Temporary power supply for my diode?

If you skimp for the quick and easy route, you will also have a temporary diode along with that temporary power supply.
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Old 10-19-2010, 02:21 PM #4
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Default Re: Temporary power supply for my diode?

I did test them with 4.5V carbon-zinc battery. You must be careful about ESD, battery accumulated charge, and heat-sinking (though for 1 seconds test that should be no problem), and also polarity (though I actually DID connect it in revert for few seconds and it survived).
Still it's risky and it's all your responsibility.
Check the thread about it in my signature (the last under 'Pictures').
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Old 10-19-2010, 06:58 PM #5
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Default Re: Temporary power supply for my diode?

alright since i dont wanna ruin my diode ill just make an LM317. thanks guys!
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Old 10-25-2010, 10:13 PM #6
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Default Re: Temporary power supply for my diode?

DrSid, it survived reverse polarity? Usually this means a certain death, instant or later. Though diodes. What I use for testing is a 8 ohm resistor and a bench power supply. I had a teacher calling resistors "frequency independent voltage to current converters".
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Old 10-25-2010, 11:46 PM #7
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Default Re: Temporary power supply for my diode?

Quote:
Originally Posted by Bluefan View Post
DrSid, it survived reverse polarity? Usually this means a certain death, instant or later. Though diodes. What I use for testing is a 8 ohm resistor and a bench power supply. I had a teacher calling resistors "frequency independent voltage to current converters".
Yes .. 3 seconds at least, 4.5V. You can mark the wires, check them and recheck them, and then connect it wrong anyway. I did not use that diode to full power yet, but on 200mW it works without any artifacts.
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