Brilliant simple to understand presentation. The presenter quickly comes to the point and walks you through the process without wasting any time. A very good gifted teacher indeed!! The minute I finished watching the video I quickly clicked on the "Like" and "Subscribe" button.
Helped me to get my brain going again on fets. Im busy to do fault finding on small invertor so now i can make sure wheter my fets are ok or not. Thx for video
@@rsattahip When I accidentally discharged the lead on my failed Motor scooter control unit, I got a large spark. Those Mosfets can store a charge for a long time and more than once. I would short them with a 1,000 Ohm resistor just in case from now on.
Very nice presntation - clearly explained and nicely demonstrated. Probably worth pointing out that the negative lead of some multimeters (particualrly the older analogue meters) have the black lead connected to the POSITIVE of the internal batttery. Also this will only work if the diode test position give a positive voltage of at least 5 V (normally - some may require a higher voltage)
Nicely done! I got more out of your 3 minute video than 1 hour of reading. I am going to use your test circuit to match mosfets. So simple! For a given input I can swap mosfets and compare their output. For P channel mosfets I can reverse the polarity. I want to balance them for audio output devices. Thank you!
In your test circuit,can't see how you get a negative reading on your DVM. +ve terminal of DVM is connected to G terminal of Fet (10kpot wiper).If pot set to bottom . Wouldn't it read 0 volts and then only go +ve as pot is increased?
5:32 The voltmeter is displaying -8.21 V. If the meter was connected between gate and source, it is impossible to show such value. The only possible way for the meter to display such value is when the meter is connected between gate and drain.
Yes. The V meter reading goes from -8.24V to +4.86V = 13.1V quite a trick with a 9V battery! The voltmeter is reading between whatever voltage the variable resistor is set to, and the voltage swing between the 100ohm resistor and the MOSFET.
@@johndoggett808 watch carefully the wiring , may be no 2nd 9v batt. is there, how can we get - v unless he connects reverse measuring across somewhere else , he might have connected reverse as mosfet switches at -5 V
@@Blue.star1 I agree with Walkalone. When the MOSFET is off, the Meter’s + terminal is at about 0.8v (the Gate (0.8 = 9v - the 8.2v meter reading)). And the negative voltmeter Terminal is at +9V via the 100ohm resistor. When he turns the gate voltage up to 3.5v (9v-5.5v at 6:06) the MOSFET starts to turn no. After this the negative terminal of the volt meter is on the voltage divider between the 100 ohm resistor, and the partially turned on MOSFET. At 6:13 he turns the gate voltage to its highest value, and the MOSFET is pulling the negative voltmeter terminal down the 0v, and the positive voltmeter terminal is the gate voltage.
I was wondering if someone could teach like. Look what I found. Thank you very much. Can you please make some videos about mother board chips the same way thank you
Bro, I have 2 questions that will be helpful if you present: 1. How to test the C1212A, a silicon NPN transistor with a UCE of 80V and an Ic of 1A. applications: audio frequency stage, power switch and 2. How to test the C3133, a silicon NPN RF power transistor preferred for use in RF power amplifiers in HF mobile radio applications. Can you help out? thanks, Bro😀
Thanks for the explanation. Helps a lot. I tried to do the same and got the results as you said. BUT, I tried with two types of AVO meter, one (with 3V supply) could do the test and the other with 9v battery could NOT do the test. The reading showed nothing. Could you please explain why? Thanks .
Brilliant simple to understand presentation. The presenter quickly comes to the point and walks you through the process without wasting any time. A very good gifted teacher indeed!! The minute I finished watching the video I quickly clicked on the "Like" and "Subscribe" button.
Just had a mosfet problem... perfect test solved all questions. thank you!
I like how you trained us ,you are a good teacher . I understand firmly
Thanks for your feedback sir 👍
8d)d-)?d-,s9-9e9ekdk:e)39e)e8)8:jekkske
Bro, you did great!!! Straight to the point..and no grammers!!! The explanation on the design of the MOSFET is superb!!!
The best mosfet explanation I seen. Thank you
Welcome
Thank you for your time making this informative video, I am repairing inverter now, this video help me understand the use and how this work.
Thank you very much for this fine video. It helped me diagnose 2 out of 4 BS170 MOSFETs bad on my radio.
Excellent video for checking the mosfets. I am diagnosing a Samsung tv power supply board. Great help. Thanks again.
Glad it helped
Thank you for the excellent explanation of how to quickly and easily understand how the MOSFET works and how to test it.
Ur demonstration ever ever very usful, and practical &theoritical big thanks
Thanks
Helped me to get my brain going again on fets. Im busy to do fault finding on small invertor so now i can make sure wheter my fets are ok or not. Thx for video
You nailed it brother. I also have new understanding
Simple but very effective explainaton Sir.
Thanks
Excellent tuition. Very easy to understand. Many thanks.
Welcome
Nice, I like the video ,explanation is very clear, straightforward.
Glad you liked it
Well done.Thanks.I wrote notes of it for future.Waiting for further videos.
All the best
Great tutorial sir. Simple and easy to understand. Thank you!
Thanks
Excellent explanation & practical demonstration - cleared many basic doubts - keep making such informative videos - thanks
You are welcome
Thank you for explaining. It was very helpful!
I like my teacher....I froom Indonesia...Thank you
You are welcome
Yes dear, you can have a thumbs up 👍.!!
Simple, clear neat without any doubts 🤗👌
nice and clear explanation for beginner level , especially for me. Thanks a lot.
Thanks for your video
Most welcome
You are a great teacher my friend! Thank you
You are welcome
Thank you fro uploading. Like the explanation. Simple, straightforward!
Welcome
Not Complicated Explanation,so i can understand Easily,Keep in going
Well done !
Provided one is grounded properly, preferably with an anti ESD wrap.
Some of these MOS devices get zapped pretty quickly otherwise !
Thanks 😊
You've never been to India, there's so much humidity there static electricity is not a problem.
@@rsattahip When I accidentally discharged the lead on my failed Motor scooter control unit, I got a large spark. Those Mosfets can store a charge for a long time and more than once. I would short them with a 1,000 Ohm resistor just in case from now on.
good video. ive never seen like this video simple and easy. thanks.
Thanks
Very nice. Understood perfectly.
Glad it helped
Nice and simple for a learner to learn
Thank you master for the lesson
Excellent, Thank You, very easy to understand!
Thanks
Very nice explanation, well done and many thanks! ;)
Good video for basic testing.
Thank you!
Very nice presntation - clearly explained and nicely demonstrated. Probably worth pointing out that the negative lead of some multimeters (particualrly the older analogue meters) have the black lead connected to the POSITIVE of the internal batttery. Also this will only work if the diode test position give a positive voltage of at least 5 V (normally - some may require a higher voltage)
´s8´zke8k3s
This was so helpful. Thank you so much!
You are welcome
Thats a real good trick! Thanks for sharing!
Thanks for sharing this good lesson
By the way, your handwriting is nice and very neat!
Thanks
Nice awesome video. Thanks sir. (Pakistan)
Thank u for this tutorial & sharing ur knowledge. Keep it up!
Welcome
Thank you very good presentation. I liked your video and gave you a thumbs up.
Thank you, super handy information which I've just used to identify a faulty MOSFET.
Thanks for the feedback
@@TechStudyCell can u show us P channel also ?
Fabulous! You're a great teacher. Thank you very much!
Welcome
Brilliant tutorial, thank you!
Welcome
Thank you for the very clear explaination.
Welcome
thank you so much, very good explainations..
Welcome
Great, God bless you.
Tnks for the info very well explained
Welcome
Very interesting and helpful - thank you Sir.
Glad it was helpful!
Damn, THANK YOU For The Video! It DID Teach Me Good Tips ..
Welcome
Good explanation
Thank you
Nice teaching 👌
Thanks
@@TechStudyCell well come sir 👍
Danke für das schöne Video.
Bitte machen sie für uns noch mehre Videos.
Liebe Grüße aus Deutschland
Good brother
very good video , helpful and instructive ! big like and subscribed as well!
Thanks
That blew my mind.
That is a good tutorial.thsnk you.
Welcome
Great Video...Thank You very much...
welcome...
very clear sir.
Thanks
Thanks for a good description, looking forward to many such videos
Thanks for the feedback...
Terrific.....keep it up, Thanks v much .
Welcome
Congratulations, very instructive video !
Thanks
Thanks . Simple to the point .
Thanks for the feedback.
@@TechStudyCell V good explanation. Thanks..😊😊😊
Very good instruction to check mosfet.
Thanks
Very well explained. Thank you.
Thanks for the feedback.
Thank you bro excellent tutorial stay safe and god bless 👍👍🙏
Thanks for the feedback
muy practica la prueba de conduccion del mosfet.....
Nicely done! I got more out of your 3 minute video than 1 hour of reading. I am going to use your test circuit to match mosfets. So simple! For a given input I can swap mosfets and compare their output. For P channel mosfets I can reverse the polarity. I want to balance them for audio output devices. Thank you!
Glad it was helpful!
Namste sir
Sir aap se request tha Hindi me video bna dijiye
Kyoki English language samjh me nhi aata hai
Great job and understandably thanks
Glad it helped
In your test circuit,can't see how you get a negative reading on your DVM. +ve terminal of DVM is connected to G terminal of Fet (10kpot wiper).If pot set to bottom . Wouldn't it read 0 volts and then only go +ve as pot is increased?
You are absolutely right.
Bravo India!
Very very useful information
Thanks
Thanks for sharing sir new supporters here
I enjoyed this thanks!
5:32 The voltmeter is displaying -8.21 V. If the meter was connected between gate and source, it is impossible to show such value. The only possible way for the meter to display such value is when the meter is connected between gate and drain.
Yes.
The V meter reading goes from -8.24V to +4.86V = 13.1V quite a trick with a 9V battery!
The voltmeter is reading between whatever voltage the variable resistor is set to, and the voltage swing between the 100ohm resistor and the MOSFET.
Symmetrical supply, +9 0 -9 he didn't show us the picture , battery is hidden
@@Blue.star1 But there is only one 9v battery in the circuit diagram.
@@johndoggett808 watch carefully the wiring , may be no 2nd 9v batt. is there, how can we get - v unless he connects reverse measuring across somewhere else , he might have connected reverse as mosfet switches at -5 V
@@Blue.star1 I agree with Walkalone. When the MOSFET is off, the Meter’s + terminal is at about 0.8v (the Gate (0.8 = 9v - the 8.2v meter reading)). And the negative voltmeter Terminal is at +9V via the 100ohm resistor.
When he turns the gate voltage up to 3.5v (9v-5.5v at 6:06) the MOSFET starts to turn no. After this the negative terminal of the volt meter is on the voltage divider between the 100 ohm resistor, and the partially turned on MOSFET.
At 6:13 he turns the gate voltage to its highest value, and the MOSFET is pulling the negative voltmeter terminal down the 0v, and the positive voltmeter terminal is the gate voltage.
Super brother thank u for sharing the knowledge
Welcome
WOW thank you This was perfect and very clear video!!! Love it! Thanks
Glad it helped
Hi bro,i like you explained.simple but perfect...tq bro
Thanks for the feedback
Nice explain
Thanks
Thanks for the info 10/16/2024👍
It was great to watch
Thanks
VERY USEFUL
Thanks
Thank you
Welcome
Thank you very much for help me.much appreciated,was the best.
Very nice video. Thank's
Welcome
awesome technique, never in my mind before. thanks for share!
You r welcome
I was wondering if someone could teach like. Look what I found. Thank you very much. Can you please make some videos about mother board chips the same way thank you
Great job 👍
Love your tutorial. Do you have a video for the PNP mosfet?
Not yet!
GREAT VIDEO THANKS !
Welcome
Great lesson Sir
Thank you
Helpful content.
Thanks
thanks! make more videos please. It help a lot of people.
Sure. Thanks for the feedback
Good man👍👍🙂
Thanks
Bro, I have 2 questions that will be helpful if you present: 1. How to test the C1212A, a silicon NPN transistor with a UCE of 80V and an Ic of 1A. applications: audio frequency stage, power switch and 2. How to test the C3133, a silicon NPN RF power transistor preferred for use in RF power amplifiers in HF mobile radio applications. Can you help out? thanks, Bro😀
Should we take out the mosfet from the board to make it accurate. Tnx
thank you can i do this when mosfit is in board?
Thanks for the explanation. Helps a lot. I tried to do the same and got the results as you said. BUT, I tried with two types of AVO meter, one (with 3V supply) could do the test and the other with 9v battery could NOT do the test. The reading showed nothing. Could you please explain why? Thanks .