It is easy to buy or build a circuit without understanding how it works. But you are taking the better path, teaching how to design it from scratch. Bravo ! Respect & Best Wishes ! I hope you will follow this with practical zener, pulse-width, etc circuit design.
Very good video although missing very important points... The transistor 2N2222 should be kept in Active Mode through the Voltage Divider, so that the Beta can amplify the low Base current in the Collector Emitter branch. The formula Ic = Beta * Ib. Each transistor has different Beta amplification value. Best to take it's value from a transistor measuring gadget to be precise. In general they say that the 2N2222 Beta is 100 but when you measure it, it turns out that the meter actually shows 211, which will throw your calculations off by a factor of 2... Then another very important thing is that the Voltage Divider's ratio is not just arbitrary between any resistor values that result in the same ratio of resistances... They should obey the Rule Rb2
For sure -> a resistor in series with a zener in reverse break-over feeding the gate will keep the gate voltage at a constant regardless of small fluctuations. Within the zeners reverse break-over current specs of course. -> I was hoping you were going to demonstrate it. I guess either theres another video or you are in the process of producing part 2.
Can you explain how the jewel thief circuit works? The one used in common solar lights on a stick. How does it know when to shut off and why doesn't it over charge the batters? Can any transistor be used? Or is there something special in the one they use for this purpose? I want a set of solar lights to last longer. Hook them up to a larger panel and wire the set together. I want to install Driveway guide lights.With motion censers that change their color. I have ideal housing I just don't know how this circuit works.
Hi bro I asked this question for, I cannot understand the ground of analog amplifier using transistor. How does the ground has voltage. But alternating current flows in both direction.
Hi bro, please make one video about 'how a single transistor or the push pull double transistors amplifying alternating(ac) current' if you explain with the help of oscilloscope it will be very useful to me.
Is the meter in series with the power supply or the LED? It looked like it was in series with the power supply, but I thought you were trying to optimize the current through the LED.
You did so many mistakes in this video... 1. The unit milliamps is mA and not ma. 2. The symbol of voltage is U, not V. V is the symbol of magnetic voltage. 3. You did not draw arrows at the diode, so it is just a diode and not a LED. This is highly unprofessional and I would recomment to correct these mistakes and upload it again. Btw: Take your "fire detector" video down, I proved you that it doesnt work. You even told me I was right.
It is easy to buy or build a circuit without understanding how it works.
But you are taking the better path, teaching how to design it from scratch.
Bravo ! Respect & Best Wishes !
I hope you will follow this with practical zener, pulse-width, etc circuit design.
I noticed that this video has 3780 views and only 247 likes. PEOPLE, YOU NEED TO LIKE THESE VIDEOS. It helps his ratings. --- that is all.
You are right.
I press on LIKE.
Great video. I like your effort of creating high quality videos with low material costs!
Thanks, I do what I can since I am on a tight budget
L3P3 damnit
Very good video although missing very important points... The transistor 2N2222 should be kept in Active Mode through the Voltage Divider, so that the Beta can amplify the low Base current in the Collector Emitter branch. The formula Ic = Beta * Ib. Each transistor has different Beta amplification value. Best to take it's value from a transistor measuring gadget to be precise. In general they say that the 2N2222 Beta is 100 but when you measure it, it turns out that the meter actually shows 211, which will throw your calculations off by a factor of 2... Then another very important thing is that the Voltage Divider's ratio is not just arbitrary between any resistor values that result in the same ratio of resistances... They should obey the Rule Rb2
What a great educational and comprehensive video. Thank you for producing this excellent work. You are a great teacher.
Thanks 😊
Very nicely explained! Great job!
Thanks!!!!!!
Very good video. Thanks
Greetings
For sure -> a resistor in series with a zener in reverse break-over feeding the gate will keep the gate voltage at a constant regardless of small fluctuations. Within the zeners reverse break-over current specs of course. -> I was hoping you were going to demonstrate it. I guess either theres another video or you are in the process of producing part 2.
Yes there will be part 2
Very clear explanation of KCL
Greetings
Can you explain how the jewel thief circuit works? The one used in common solar lights on a stick. How does it know when to shut off and why doesn't it over charge the batters? Can any transistor be used? Or is there something special in the one they use for this purpose? I want a set of solar lights to last longer. Hook them up to a larger panel and wire the set together. I want to install Driveway guide lights.With motion censers that change their color. I have ideal housing I just don't know how this circuit works.
Hi bro I asked this question for, I cannot understand the ground of analog amplifier using transistor. How does the ground has voltage. But alternating current flows in both direction.
Which circuit wastes more energy in heat? A resistor or the transistor? Which one is more efficient?
I think lm317 would be better for constant current/voltage regulation. I like your step by step explanation it is easy to follow.
You are right I will make a 2nd part with the lm317 and other circuits
Nice explain
Thanks
Thank you.
Best regards
Hi bro, please make one video about 'how a single transistor or the push pull double transistors amplifying alternating(ac) current' if you explain with the help of oscilloscope it will be very useful to me.
Is the meter in series with the power supply or the LED? It looked like it was in series with the power supply, but I thought you were trying to optimize the current through the LED.
it is in series with both, check this: megadepot.com/resource/how-to-use-multimeters
Amazing!
😁
Thanks
Ths ks
Lm344 is what you can use instead of 2n2222.
Could you make 200watt 220v to 1000Volt inverter
what if we use two zener one resistor on base of transistor ...
Yes you can
Can you make zvs flyback sgtc?
In questo tuo video non ci sono i sottotitoli
OK adesso ci sono 😅
saudações a todos. mais uma excelente aula de eletrônica básica. muito bom. sucesso.
Obrigado thanks gracias
@@ludicscience . saudações. eu que agradeço. sucesso.
Great video though ..😁
I was thinking you might cover current regulation. In this case you are relying on constant voltages.
Cool
Spasibo brat
Trep askana
I hope more efficient version of constant current circuit coming soon 🙂
Yes ther will be a second part
Друг, ужасное произношение...
Hey my like struck fifty yeah me
:)
You did so many mistakes in this video...
1. The unit milliamps is mA and not ma.
2. The symbol of voltage is U, not V. V is the symbol of magnetic voltage.
3. You did not draw arrows at the diode, so it is just a diode and not a LED.
This is highly unprofessional and I would recomment to correct these mistakes and upload it again. Btw: Take your "fire detector" video down, I proved you that it doesnt work. You even told me I was right.
The symbol of voltage is V or E or U
These symbols are used in most books.
You are right about the led sgin.
It is better to write mA than ma.