I want to check the condition of a mosfet with the help of multimeter? the mosfet is outside circuit and I want to check it's condition wheather it is ok or not. How to check it? what readings I should get with multimeter?
2006-11-26 18:01:36 · 4 answers · asked by abhay_akulkarni 1 in Science & Mathematics ➔ Engineering
It's very easy.
1. Switch your multimeter to the Diode test position.
The following steps are for an N-Channel MOSFET.
Hold the Black lead to the MOSFET's source terminal.
2. Touch the GATE terminal momentarily with the Red lead.
3. Then touch the DRAIN terminal with the Red lead without touching the GATE terminal with your fingers.
The multimeter should show a low reading now. (The MOSFET is now ON)
4. With the RED and BLACK leads still connected to the DRAIN and Source terminals of the MOSFET, now touch the GATE terminal with your finger. The Multimeter should immediately show an open cct. (The MOSFET is now OFF)
This is a very simple way to test a MOSFET.
2006-11-26 18:55:46 · answer #1 · answered by Longfellow 3 · 1⤊ 0⤋
Test Mosfet
2016-12-28 14:18:50 · answer #2 · answered by ? 4 · 0⤊ 0⤋
This Site Might Help You.
RE:
how can I check a mosfet by using multimeter?
I want to check the condition of a mosfet with the help of multimeter? the mosfet is outside circuit and I want to check it's condition wheather it is ok or not. How to check it? what readings I should get with multimeter?
2015-08-05 23:31:55 · answer #3 · answered by Graig 1 · 0⤊ 0⤋
Mosfet Testing
2016-10-17 22:32:03 · answer #4 · answered by blades 4 · 0⤊ 0⤋
You can't. To operate properly a MOSFET needs to have a bias voltage applied to its gate to turn it off (if it's a depletion type) or on (if it's an enhancement type).
Doug
2006-11-26 18:05:47 · answer #5 · answered by doug_donaghue 7 · 2⤊ 0⤋
I was just going to say what Doug said, but he already said it, so I'll just say that Doug is right.
2006-11-26 18:09:22 · answer #6 · answered by Chris J 6 · 0⤊ 0⤋