diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Pass Labs (http://www.diyaudio.com/forums/pass-labs/)
-   -   How to match the FET (http://www.diyaudio.com/forums/pass-labs/5788-how-match-fet.html)

TjongKristian 6th September 2002 05:43 PM

How to match the FET
 
Dear All,
I am a beginner in electronic world and want to learn to build an Amp. After doing some searching and reading, I stumbled how to macth the fet. I read Mr. Nelson Pass article on matching, and I think :rolleyes: I understand the concept behind it. Unfortunately, I do not understand the schematic. For example, it is my understanding that in matching, let say, N Fet, I have to connect positive supply to a resistor and then connect it to Drain and Gate with the Source grounded and then take a measurement across the Ground and Drain. Is it Correct? Last question, I came across a product which I think will do the same job, here is the link, http://www.peakelec.co.uk/products/atlas/atlas.htm
Has anyone used this product? Thank you for your help.:angel:

Nelson Pass 6th September 2002 05:44 PM

You have it correct.

:cool:

jackinnj 6th September 2002 06:57 PM

Characterizing FET's
 
This is a link to International Rectifier's ap-note on testing FET's. They use a Tektronix 576 curve tracer, but you can perform many of the same tests with a good DVM -- and they explain how. Note, before trying these out that many of the tests are performed with a pulse generator -- I think that they use 80uSec pulses to measure gm. I use 100uSec with a Tek PG501 pulse generator.<p>http://www.irf.com/technical-info/an957/an-957.htm


All times are GMT. The time now is 08:32 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio


Content Relevant URLs by vBSEO 3.3.2