No it is not. It is for Ultimate PROs can understand as he said. It means if you have no idea about electronics like a PRO you, you can not understand.
The disc in the pipe analogy should not have a spring because the gate on the MOSFET acts like a capacitor. Circuit designers usually add springs using pull down or pull up resistors.
@@August301989 Yes it can. The way to prevent this is to use a high resistance resistor (usually 10k or close) connected to the gate and source. It is called a pull up resistor on a p-channel MOSFET, or a pull down resistor on an N-channel MOSFET.
Correction, there are 4 types of mosfets. You even mentioned them in the video, but for some reason you said there were only 2. Enhancement and depletion just says if they are normally open or normally closed, while n-channel and p-channel tells you if they are activated by a positive or negative voltage compared to the source pin
@@Mulakulu You are right. Dual gate mosfets were popular in the 70s for mixers, RF and IF amplifiers. They are not used much anymore. The second gate was used to control the gain or to inject the local oscillator. A very easy to use part similar to a tetrode or pentode vacuum tube.
MOSFETs are more efficient than other types of transistors and 10 to 60 times faster than them. Also, it can be miniaturized better to put in a chip. But they are also more delicate to electromagnetic pulses and electrostatic discharges. Even so, we made our civilization to work around this delicate technology because there are no better options, they represent now 70% of semiconductor's market.
Incorrect; MOSFETs are not fundamentally faster than other sorts of transistors. Bipolar junction transistors (BJTs) and HEMTs both have higher fundamental frequencies than FETs. You're right about extreme miniaturization though; it's much easier to make a bunch of small MOSFETs than BJTs, and due to their lack of DC gate conduction, they're better for tasks like memory and processing.
I've known of, and used occasionally, MOSFETS but honestly this was the first time this was explained extremely well and concisely the two (main) types of MOSFET you'll encounter. ❤
The spring in the water analogy diagram seems worng. If you remove the voltage, the channel will remain open as it's controlled by charge which will stay in the gate until you remove it (eg. by shorting to the source pin)
Incorrect. The signal you apply to the gate is a voltage. The upstream circuit does not apply and remove a voltage. It applies a positive voltage to turn on the Source-Drain path, and applies a different voltage, zero volts, to turn it off. (Assuming an N-Channel enhancement mode MOSFET example.)
Thank you very much. Your explanation and demonstration of both real life and illustration are very helpful. This channel is a blessed for electronic learners.😃
Best analog for mosfet is ball valve U apply voltage to the gate and let the gate alone -it remains open until u not discharge the gate No spring effect U need to discharge gate to 0
I spent countless hours at Fairchild Semi back in the 70's and 80's learning how these things worked. here's a video short explaining it all in a few minutes.
For fucks sake why can't schools be as informative. It's my 3rd year in an electronics-based highschool (best in town) and the teachers cannot explain stuff like this in 45 minutes while you do it in under a minute
Mosfet has been around for sometime and very common in computers and other electronic devices. If computer is malfunctioning, mosfet could be the culprit but not always.
MOSFETs are more efficient than other types of transistors and 10 to 60 times faster than them. Also, it can be miniaturized better to put in a chip. But they are also more delicate to electromagnetic pulses and electrostatic discharges. Even so, we made our civilization around this delicate technology because there are no better options, they represent now 70% of transistors market.
I’m in a class for how to design and manufacture these chips and the short clip of the p-type region is a very helpful visualization. You should do a video on fermi levels!
This is just like a plot operated valve in hydraulics. We call it normally open (N/O) for valves for flow when pressure applied and normally closed (N/C) for closed in the rest position. That is a lot easier than what they come up with.
