MOSFET is a field-effect transistor in which there is a thin layer of silicon oxide between the gate and the channel.
MOSFET used in Desktop and Laptop motherboards there are two different types of MOSFET
N-Channel MOSFET Used in Desktop motherboards while in Laptops (motherboard) both N-Channel and P-Channel MOSFET are used.
Ok! Enough talk about introducing MOSFET lets Do the testing Process and see which MOSFET is working one and which one is non-working.
During testing I will show you which one is P-Channel and which one is N-Channel MOSFET.
To test a MOSFET we will need a Multimeter and some working and non-working MOSFET.
Ok as we can see MOSFET consist of 3(three) pins
Now set your Multimeter to (Continuity Beeper) and Black Probe to Common Ground and Red Probe to Ohms(Everything but Ammeter).
Touch Both Red Probe and Black Probe and if your hear a beep sound than you are ready for testing MOSFET.
First we will check if this MOSFET is N-Channel or P-Channel.
N-Channel MOSFET: Connect Black Probe to the Drain and Red Probe to the Source of MOSFET
and if you get any Value on screen of Multimeter than this MOSFET is N-Channel MOSFET.If you did not get any value than better try second one.
P-Channel MOSFET: Connect Red Probe to Drain and Black Probe to Source and if you get any Value than its P-Channel MOSFET.
So now we know how to find P-Channel and N-Channel MOSFET so its time to test if its in working condition or not.
N-channel Working MOSFET: Now Pick a N-channel MOSFET and connect Black Probe to Drain and Red Probe to Gate if you don’t see any value than its working MOSFET.If you see some Value than its a (short MOSFET, a leaked MOSFET or not a MOSFET at all).
As its working MOSFET lets charge this MOSFET, connect Black Probe to Drain and touch Red Probe for few seconds to Gate and than Touch Red Probe To Source while Black Probe should stay Connected to Drain and you will here a beep which shows that your MOSFET is charged and in working condition.Remember to do the same test again you have to release to charge from MOSFET you can do this by Holding a MOSFET for few seconds between you fingers or just connect Black Probe to all three Pins at same time.
P-Channel Working MOSFET: If you have a P-Channel MOSFET than connect Red Probe to Drain and Black Probe to Gate and if you don’t see any value than its a working P-Channel MOSFET but if you see some value than probably this MOSFET is Short or leaked MOSFET.
To charge a working P-Channel MOSFET connect Red Probe to the Drain and touch Black Probe to Gate for few seconds and bring back the Black Probe to Source and you will hear a beep sound which means your P-Channel MOSFET is charged and good to go.
Sir, can we substitute AO4712. (laptop mosfet ) with SM3113N (Desktop motherboard mosfet) as datasheet parameters match but sm3113n with 85amp, as of ao4712 ,13amp Reply awaiting sir, thanks in advance.
🌹 Happy New Year -2018 🌹
ये नववर्ष आपके जीवन में खुशियां ही खुशियां 😀😀 लेकर आये! ईश्वर की कृपा आप पर सदैव बनी रहे आप उन्नति के शिखर पर रहे इन्हीं शुभ कामनाओं 👏🏻👏🏻 के साथ आप और आपके पूरे परिवार 👨👩👦👦 को मेरी तरफ से नववर्ष
की हार्दिक शुभकामनाएँ
Sir good morning
Jis tarah aapne mosfet ki picture draw krke dikhai hai ki mosfet ke ander 1doide hota hai agar doide ka cothore drain se connect hai to vo n channel mosfet hai mera aap se 1 prashn hai desktop mein n channel mosfet prayog ki jate hai jb ham drain pr yani cothore pr positive supply dege do hame source pr positive supply kaise milegi kyoki hamne drain pr positive supply di hai aapko pta hai koi bhi doide forword bios mein kam krta hai ..........
Agar hamne n channel prayog kiya aur uske drain pr positive supply di to vo to reverse bios ho gya vo kam kaise krta hai
यहाँ पे mosfet by default switch off रहेगा और वह तभी सप्लाई पास करेगा जब gate उसको बोलेगा
एक और बात , अगर सप्लाई को always पास करना हीं है तो फिर mosfet क्यों लगाए ? Diode हीं ना लगा दे ??
लेकिन mosfet लगा है मतलब ओफ़ के लिए लगा है
Diode से हमें सप्लाई पास नहीं करनी है इसी लिए तो ऐसे लगाते है ... यह पे drain से पॉज़िटिव सप्लाई देना यानी की रोक देना है सप्लाई को source की और जाने के लिए ।। लेकिन जब हम गेट से trigger करते है तब सप्लाई drain to source । gate के कारण होगा
Harshad Patel thank you sir for ur quick reply.
I want to know that what if a mosfet gives u value of 13 in source with beep and 1 in gate is that bad mosfet?
And 2 mosfet giving me the value of 109 in source but no beep that is also low as u said source must be 400 to 600 and gate with 1 is that also bad or not?
Aap likes mat mangiye! apko ko to dua dunga mai, sir really you are doing a great job. Thanks for not only this for your entire videos you are making, here each and every and its very understandable. 👍
Because he was an angel, Castiel initially expressed almost no emotion towards humans, and had little room for disobedience or feelings, as he was driven to follow his orders, although he does reveal some doubts about the morality of his orders, expressing an appreciation for the beauty of humans as Gods creations. As he spends more time with Dean, he develops empathy and affection for him, and eventually for those close to him, and humans in general. Castiels superiors begin to question his loyalty and promote Uriel to oversee him. Castiel eventually rebels against and is ostracised from heaven, leaving him deprived of most of his angelic abilities, forcing him to interact more with humans than he had previously. He is often confused by the finer details of human interaction and is blind to social norms. He allies himself with Dean, and despite his despondency over the absence of his maker and their desperate situation, Castiel continues to fight against the Apocalypse.
After his second resurrection by God, with enhanced abilities, he sees his decisions and support of freewill to have been affirmed. Castiel begins to show pride, while remaining somewhat naive with regard to consequences. Crowley is able manipulate this budding sense of pride to get Castiel to start the angelic civil war. Castiel becomes dedicated to his own decisions, and tends to pass over other opinions, even Deans, in the absence of another clear course. He eventually double-crosses Crowley, taking in the souls of Purgatory alone. He then insists on worship from his former friends. He intends to be an involved god, a better and loving god who will not abandon the world. He renounces his dedication to free will, saying that angels need a firm hand. He is quick to smite those he feels to be hypocritical and unjust, and rewards those who have faith. However, Castiel is being influenced by entities inside him - including leviathans - and his actions become erratic and violent. He realizes he is not strong enough to contain the power, and at a prompt from Sam, he goes to the brothers for help. He is apologetic and humbled; after the souls are out of him he wants to find a way to redeem himself before the brothers. He eventually takes Sams madness on himself, freeing Sam.
In episode 5.14 My Bloody Valentine, Castiel shows his deep affection towards raw meat, eating it in the room and unable to get to famine, one of the four horsemen. Here, we realize that Castiels vessel, Jimmy Novak is desiring the food which he cannot gain access to with the angel possessing him.
Castiels insanity after taking on Sams memories of Hell seems to free him of some of his guilt, though it leaves his mind scattered. He was unwilling to fight due to his belief that he is a "jinx," though Dean convinces him to help kill Dick Roman. He also expresses some fondness for Meg despite the previous animosity that existed between them. However, after getting trapped in Purgatory, Castiel seemed to have regained his sanity, though he admitted there is no way to know for sure. However, his experiences have changed his personality somewhat and he is no longer as aloof as he usually is and has displayed a fondness for human things he took for granted such as watching television, which he never understood before.
4.01 Lazarus Rising.