12V LED Battery Level Indicator With Zener Diodes & Resistors

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This electronics video tutorial explains how to build a 12V LED battery level indicator using zener diodes and resistors. It also explains how to determine which LEDs will be on and which ones will be off by comparing the voltage of the battery with the total voltage drops across the light emitting diodes and the zener diodes.
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Опубликовано:

27 янв 2020

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Комментарии : 21

@successthruknowledge 2 месяца назад

What a clever set of circuit compositions! I wondered always how those illuminators worked! So satisfying to see real world applications of our electronics education with you!

@mercuriley7212 4 года назад

Literally came here from a math video to study for a pre-cal exam, if you see this, please know what your doing is helpful to a lot of us and keep doing what you love!

@NexGenSlayer 4 года назад

Two questions: Why does the voltage drop over the resistors not matter? Also, if the resistors were placed before the zener diodes such that the order (from positive to negative) of components was resistor, zenor, LED, would the V(in) have to be greater to overcome the required Voltage drops (V[out])? Thanks.

@bbappysarkar6452 3 года назад

very good explanation thanks

@rtype4930 4 года назад

Excellent sir ! you are making so many nice video every day ! I need some time to study all , so perhaps it will be better to slow down and make a video every second or third day, just to have some time to study in depth... anyway thank you for your excellent presentations !

@oshandumeera Год назад

Thank you so much.

@_JUNGSEIPEI_ 8 месяцев назад

0:22 I’ve been watching this guy’s videos since highschool and that’s the first time I’ve heard him make a mistake lmao

@frommarkham424 8 месяцев назад

This circuit is genius

@donfazio6884 3 года назад

Nice vid Thank you, could you use am RGB LED to do the same thing, Could you make a video to show how?

@ese3v 4 года назад

Could you do a video on a 3 digit combination lock with only ons and offs and for an led to light when it’s right or wrong

@johnmoor8839 4 года назад

THE RED 2V LED IS IN SERIES WITH A 1V ZENNER, HOW WILL IT GET THE 2 V IT NEEDS TO TURN ON. ALSO HOW ARE THE VALUES FOR THE RESISTORS ALTERED BY ALL THIS.

@deanharrysmith718 3 года назад

Don't you just love it when the person who makes the video never replies!!

@Alexis.645 4 года назад

can any one tell me what is the program he use for the tutorial?

@kolinevans9127 4 года назад

How much energy will the circuit utilize when all led are lit ? {either circuit}

@himeshthungaturthi3215 4 года назад

If ur reading this comment, can u plz start making videos on communication systems plz...The chapter was not covered in our college and we are having an exam next month in which this chapter has a significant weightage

@kjuirteerdserty9618 Год назад

Regarding LED level indicator with resistors, the first LED will be brighter than the 3 others because all current with pass through it, and the same applies for the second which will pass the current for itself and the other 2 LEDs. Am i right?