electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
the best procedure to check ultra fast diode by analogmeter

 
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Electronics General
View previous topic :: View next topic  
Author Message
newone



Joined: 23 Dec 2005
Posts: 6

PostPosted: Sat Dec 24, 2005 7:47 am    Post subject: the best procedure to check ultra fast diode by analogmeter Reply with quote

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
Back to top
View user's profile Send private message
Al_Dodge_Bundy



Joined: 05 Apr 2005
Posts: 93
Location: Netherlands

PostPosted: Wed Dec 28, 2005 11:20 pm    Post subject: Reply with quote

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
Back to top
View user's profile Send private message
awright



Joined: 10 Aug 2005
Posts: 20
Location: Oakland, California

PostPosted: Fri Dec 30, 2005 1:38 pm    Post subject: Checking ultra fast diodes Reply with quote

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
Back to top
View user's profile Send private message
[email protected]
Guest





PostPosted: Sat Jan 07, 2006 12:57 pm    Post subject: Re: the best procedure to check ultra fast diode by analogme Reply with quote

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?
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Electronics General All times are GMT
Page 1 of 1

 
Jump to:  
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


eServiceInfo on FB - Service Manuals Free Download - Service Diagrams

Free TV Schematics Download - HARDW.net - Pinout Master - Jabse Service Manual Search - Jabse.InK  - onTap.bg

SnimkiOt.com - Poblizo.com : пътешествия