What is a Zener Diode? - Electronics Basics 15

[TheTechPrepper]

I'm hooked on this video series. I was struggling a bit with the electronics questions on the amateur radio General exam. These videos are short and to the point and provide enough background so that you really understand the concepts. Great work!

[sreekumarUSA]

You have explained the function of Zener Diode ( and many other components) very well. The lecture has professorial gravity and can be understood and grasped well by any student in the class. Thank you.

[TheCoral]

For some reason this english channel explained the Z-diod better than any german one I could find

[Ivanzrer]

Flashbacks to the first time I saw a zener diode on a schematic.


This was in a highschool electronics class, in what I guess would equate to junior year in the united states.
It was however in the "Elektrofag" (Electro-subject) line of the school system.


We had basically not been given any education on what anything was at that point, since it was pretty early on in the year, and the teacher drew this schematic for a rectifier. I knew a little bit, so I managed to piece together how it worked, except for the diode.


I had a look at the diode and thought to myself "thats a funky diode, I wonder whats different about it" and I asked the teacher as such. He tells me "oh thats a Zener diode" and wrote that on the board.


I ended up having to ask this teacher about it several times throughout the year, and the best explanation I could get was "The voltage across it is constant"


Needless to say, those who joined that line of school planning to do something with electronics (myself included) were so demotivated by the utter confusion those classes were, that practically all of us ended up not persuing that.

[makemoneyonline]

Little summary of this video :
Diodes allow current to flow in only one direction. If you were to reverse-biased (change the direction) the diode, the current will not flow through the circuit until the "Zener Voltage" has been exceeded. As it happens, the voltage of the power supply is at 5volt. He moved the voltage to 10.8V, like that the "Zener Voltage" has been exceeded and the current can flow through the circuit. Zener diodes can be very useful for : creating voltage references, shunt voltage regulator and over voltage protections circuit. When you were to increase the voltage of the power supply to 51V and measuring the voltage throughout the zener diode with the help of a voltmeter, you'll notice that the voltmeter measured a voltage of approximately 10 volt and therefore you created a 10 volt voltage regulator.

[denushloitongbam]

its the simplest and easiest explanation i have found for zener diode ...good job

[oldsof]

Take a shot whenever you hear 'diode'

[enriquecorrea]

Im in electrical school to become a 4th year electrician. My teacher is good but after talking about zener diodes, it made no sense. You did such a great job explaining this and helped me with my school. Thank you very much and i will be subscribing!!

[enriquegabriel]

The app is called EveryCircuit. And this is the best video I' ve ever seen. I finally understand Zener Diode.

[JoelNSales]

An educator's point of view explanation, very clear, and informative

[najmaquadri]

The best explanation I have ever found 😊 keep it

[harounelmir]

this is a perfectly organised presentation. Thank you for taking your time into helping in the best way possible

[bablisingh]

so eloquently explained, having watched and read others, was not able to grasp the subject, but your teaching is instant to grasp.THANKS, made my life very very easy, too good..keep it up

[MrLalochifrin]

best explanation of how a Zener diode works. I have checked many other sites but this is the best.

[vitorsmgomes]

after searching and searching and....for a good explanation about how Zener really works, this video was far away the best one! thank you very much! im totally clarified!

[rogilrosales]

Great Vlog! very simple but very easily understandable, I'm new to your channel but I'm fascinated by how you create learning materials, pls. continue creating next ones about electronics..

[rossgee]

I really appreciate your videos, but.. the elephant in the room is the resistor that is dropping the voltage in the circuit to 10.1V. The video implies that the zener diode is responsible for this voltage regulation. It clearly is not. It is simply a checkpoint in the circuit that blocks flow in the event of a voltage drop below that imposed by the resistor.

[rodrigo-tjgf]

Finally someone explaining it in a way i can underestand.

[johnpenman]

An excellent explanation of how a zener diode works. Now, I understand what this type of diode does!

[eeverett]

Nice to have such a simple and straight to the point explanation. The video demo was great too.