220V AC to 12V DC Converter Power Supply Using Diodes, Capacitors, Resistors, & Transformers

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brake is dc

electric hoist has motor winding connected to one side of bridge rectifier to energize brake.

Willy nilly jumping around rms and flat dc?

can you please talk about this relation 'Vripple=Idc/RCf'??

As shown, yoiur use of a Zener is not valid. Update this video to show how amperage is controlled while using a Zener. Otherwise, just throw a silicon lienear regulator at the audience.

I want to know why we used e normal resistor in this circuit??

(logically) the output of filter should increase ,
what could be the output volts after that increase

What explains the .3 v potential difference?

Not good and clear explanation

🤌

design a power supply circuit that maintain +5v dc output voltage using zener diode .. can you help me with the calculations?

Good.

E Polytechnic. A Technical channel.

i think anode is the (-) side and cathode is the (+) postive side

simply a great video. you summarized it very well. thank you.

Rs is not needed at all because it is contained withing the secondary winding of the transformer.
Secondly the 10 ohm resistor on short circuit will try and dissipate 10 watts.
The whole circuit and the commentary is "way off the mark." The 10R is STUPID. It does not do anything and does not protect anything and is not needed. If you are worried about a short-circuit . . . . . . use a 2 amp fuse !!
This is typical of an instructor that DOES NOT THINK OUTSIDE THE BOX. I have been teaching instructors for 50 years and pulling them up over simple absurdities like this.

Great video...A short on the output side will usually blow the primary side of the transformer. A fuse on the output side will prevent that most of the time. You can easily verify which side of the transformer is blown with a meter to prove it.

thank you so much for the explanation it's really helpful

You've saved me

How does this guy know literally every type of engineering

what wattage resistor should i use if i want to drop the voltage to 4.5 volts?

what if I feed an AC active pfc psu directly fro DC solar power if voltage and amp is enough?

Can we use transformer less supply , buy using current limiting resistor before bridge...if we require at out put is 20 mA.

Thanks a lot, I have learned to figure out, what I was nervous for ages with in 30 minutes ✍

Thanks a lot, I have learned to figure out, what I was nervous for ages with in 30 minutes ✍

Very very nice video good

Found your video to be really helpful, informative and explained calmly and clearly ! Well Done. I wish i had your level of expertise and the ability to explain a topic as well as you have done here.

Question: the direction of the current on the secondary of the transformer depends on the winding/polarity right?

great ❤️❤️

Ap dunya k ghsreebo pa taqazay oqat ho k chal rahai ho is leye ap dunya k jshaltay khatam nahi karpatay ye apka endhan hain in ko sanwarna ki bat qu katsy ho wohi ujarh bsse hokay lanat ki bhonk kisay sunatay ho kay ham ye chatay hain wo chatay hai

Thanks for the lesson. I recently disassembled an electrical device which had components using 120vac, 12vdc, and 5vdc. I couldn’t figure why it had a 120vac to 14vac transformer. After your video I have a much better understanding. I am nowhere ready to put my limited electrical knowledge into practice but with all the devices in today’s world with chips and circuit boards if interesting gaining a little understanding.

If i use ceramic capacitors where can i place it??pls reply

Hi, thanks for the video. I have a question about a fridge inverter for a compressor. It convert 1 phase 120 or 220v~ to 3phase. This inverter is 220v~ and it has coil with these specs 2A/2x5 ,6mH, a full bridge and a cap 220uF/450v and the circuit that generate the 3 phase. My question , when I apply 120 instead of 220 to this full bridge I measure 390V AC and 177v dc across the cap, also across each diode it’s 63v dc. Since I don’t have 220 AC source, my question is what will be the AC/DC voltages across the cap when applying 220v? can I replace the coil so it is compatible with 120v input ? I have a coil with the following spec 4A/2x2,7mH

Thank you for your time! Very good study.

Thank you.. Clear & Precise

The world's best teacher

You made a mistake. Where the 13V is, it is AC. So, there's no positive or negative until the power passes the diodes.

Very Good. Alternatively, I believe, you could replace the zener with a Voltage regulator IC(7812) and eliminate the resistor to give the same result result. but great explanation and calculations.

Great video

Like 2FD Sound Services mentioned, when you are talking about volts AC, that usually represents a root mean square (rms) voltage. To convert to peak voltage, you'd multiply by sqrt(2) ≈ 1.414, so that 13 VAC would be about 18.4 V peak voltage across the secondary winding.

But in any case, thank you so much for making and sharing all of these videos, across every subject. You're the man!

Excellently explained

This video helping me so much, its easy to understand.
THANK YOU <3 !

Thanks a lot!As most of the times saving lives :)

It would be lot more comfortable if you shed some light on what that 13 v really means in a waveform manner, i feel quite a gap between that and how the capacitor actually affects that voltage. You went over that some videos ago and could have brought it up to reduce confusion. Anyway otherwise good video

Of the same diameter and total length of wires input and output Step down transformer

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Explanation was very good and easy to comprehend.