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newone
Joined: 23 Dec 2005 Posts: 6
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Posted: Sat Dec 24, 2005 7:47 am Post subject: the best procedure to check ultra fast diode by analogmeter |
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the best procedure to check ultra fast diode by analogmeter
what is the best procedure?
how to know whith analog meter the diode is short or leckage |
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Al_Dodge_Bundy
Joined: 05 Apr 2005 Posts: 93 Location: Netherlands
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Posted: Wed Dec 28, 2005 11:20 pm Post subject: |
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Can you measure resistance (Ohm) with your meter?
If so, a short should measure 0 - 10 Ohms
A good diode should measure infinitive resistance ( > 1000 M Ohms) in one direction and a few K Ohms in the other direction.
Grtz Mark |
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awright
Joined: 10 Aug 2005 Posts: 20 Location: Oakland, California
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Posted: Fri Dec 30, 2005 1:38 pm Post subject: Checking ultra fast diodes |
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newone:
You can't check the SPEED of ultra-fast diodes with analog meters.
You can check forward/reverse conductivity to see if they are functioning basically like a diode, but that will tell you nothing about switching speed. You need a sampling 'scope to check rise and fall times.
Let us know if you are only trying to test for forward/reverse conductance or are trying to test for rise and fall times.
atwright |
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[email protected] Guest
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Posted: Sat Jan 07, 2006 12:57 pm Post subject: Re: the best procedure to check ultra fast diode by analogme |
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newone wrote: | the best procedure to check ultra fast diode by analogmeter
what is the best procedure?
how to know whith analog meter the diode is short or leckage |
SET YOUR TESTER TO X10K ANY READING IN REVERSE SIMPLE MEANS LEAKAGES...OK? |
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