How to test Mosfet with Multimeter?

Ryssen · 21st July 2008, 03:04 PM

How?

Unsoldered.

Nelson Pass · 21st July 2008, 03:24 PM

If you measure less than "infinite" resistance from Gate to Source,
then it's broken. After that, check out the article on testing Mosfets
www.passdiy.com

Ryssen · 21st July 2008, 03:50 PM

30 Ohm..broken....
Is the Dynamik CCS in F3 supposed to work at below or above a certain frekvensy?
All the voltages are right but I get no response when turning P2 at
1khz sinus...
OT.

Ryssen · 21st July 2008, 04:53 PM

Yes,I do get response,on one channel..

space2000 · 25th July 2008, 11:57 PM

hi,

i had learned that aleph-3 IRF9610 if broken, output voltage will go high and it will kill your speaker, how can i protect my speaker from this. i know there are dc protection circuit but is there any other way to protect?

thank you

Ryssen · 26th July 2008, 01:00 PM

Quote:

i know there are dc protection circuit

A capacistor in serie with your speaker,but you wouldt want that if you don´t have to....

suro_elsh · 27th July 2008, 10:32 AM

http://www.electronicrepairguide.com...t-testing.html

bluevas · 30th August 2008, 03:27 PM

How about this?

21st July 2008, 03:04 PM	#1
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	How to test Mosfet with Multimeter? How? Unsoldered. __________________ Regards Åke

21st July 2008, 03:50 PM	#3
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	30 Ohm..broken.... Is the Dynamik CCS in F3 supposed to work at below or above a certain frekvensy? All the voltages are right but I get no response when turning P2 at 1khz sinus... OT. __________________ Regards Åke

21st July 2008, 04:53 PM	#4
Ryssen diyAudio Member Join Date: Dec 2003 Location: Sweden--> Here	Yes,I do get response,on one channel.. __________________ Regards Åke

25th July 2008, 11:57 PM	#5
space2000 diyAudio Member Join Date: Mar 2008	question about protection hi, i had learned that aleph-3 IRF9610 if broken, output voltage will go high and it will kill your speaker, how can i protect my speaker from this. i know there are dc protection circuit but is there any other way to protect? thank you

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

21st July 2008, 03:24 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	If you measure less than "infinite" resistance from Gate to Source, then it's broken. After that, check out the article on testing Mosfets www.passdiy.com

27th July 2008, 10:32 AM	#7
suro_elsh diyAudio Member Join Date: Jul 2008	http://www.electronicrepairguide.com...t-testing.html

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Test for blown body-diode in mosfet?	h_a	Solid State	2	29th June 2009 07:47 AM
Multimeter test leads?	sneakers563	Tubes / Valves	4	2nd September 2008 03:50 AM
How to test mosfet?	Nordic	Solid State	21	22nd February 2007 07:42 AM
irf9540 mosfet test(p-channel)	luv2bass	Parts	1	2nd February 2004 09:35 PM
What to look for in a multimeter	specialx	Equipment & Tools	5	4th October 2002 04:04 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read