How does Buck Converter work? | DC-DC Converter - 1

In this video we will explore the design and working of a closed-loop buck converter.
From its basic circuit to feedback driven circuit, we will explore it completely.

Correction: 6:05 - The duty cycle of PWM "increases".😅

Chapters:
00:00 - Introduction
00:17 - PWM
01:12 - Adding Inductor
02:30 - Frequency Increase
02:45 - Adding Capacitor
03:52 - Basic Buck Converter
04:13 - Closed Loop Buck Converter Circuit
04:20 - Operational Amplifier or Op-Amp
04:54 - Differential Op-Amp
05:30 - PWM Generator
06:08 - MOSFET
07:00 - Supply and Reference Voltages
07:25 - Normal Load (Output Voltage High)
07:37 - Double Load (Output Voltage High)
08:05 - Change Output Voltage
08:23 - Important Points
08:28 - 1) Voltage Divider
09:00 - 1.5) Load Change
09:21 - 2) PWM Generator (Reversed Comparator Inputs)
09:40 - Outro

The feedback does changes at 07:37 (Small change) but due to compression (Video + YouTube), The color doesn't change.😅

#CircuitAnimation #DC_DC_Conversion

[nexpro]

Good as this video is, it is yet another example of why it is important to have a human do the narration rather than a text-to-voice system. This video would likely have been better with a real voice.

[joerit]

There is so much understandable information here that my brain can’t absorb it all in one view! Great explanation and video!! Must watch it multiple times.

[tyleraubin]

Because youtube is so awesome, they cannot show the dislike counter. For those wondering if this video is good information, this video is UNMATCHED. Everything in this video is true to an Engineering A+. The fact that PWM is discussed and how it is generated further shows a true engineer wrote this video. Excellent information. Thank you for your wisdom!

[nickush]

Nice to see that the circuit is properly grounded !! :)

[wizardofboz]

Triangle wave as a duty cycle template with the comparator is freaking genius.. never crossed my mind before.

[EngMohammedMunawar]

Explorer: is a best electronic channel ever as I found online till now. keep it up you are doing tremendous job.

[melchiortod]

Yo that's a solid ass video my man. Very very good. Step by step explanation. I never thought of inductors as becoming a battery due to their stored up energy in the magnetic field, and now that i think about it, it feels sooo obvious. Thank you very much

[anhoanghocgioi]

The explaination of Inductor and Capacitor in this video is sarcastically more understandable than those dedicated videos out there.

[maheshpadmanabh]

This is the best channel on electronics for sure. So much detail and The explanation is perfect!

[muraisalam]

استمر يا مدهش افضل قناة لشرح الدوائر الالكترونية

[wallacegrommet]

PWM is so useful in current regulation in everyday devices. Cheap, reliable components for speed control, etc are such a convenience

[ItsBoyRed]

seriously underrated video.
i will remember this video as one of the videos to watch learning electronics.

[electronresonator]

I recommend 0.75 x speed,
if you're using keyboard, click the video, hold shift and press < once
if you're using phone, press that three dots on the top right, and select playback speed, set to 0.75 x

[vinitsingh]

Wow just wow, no comparison of your video.
Great work man, just great.

[Space_Aman]

Excellent explanation and video, you explained things way better than my electronics engineering professors do, lol!

[HNKNH.]

3:58 ERROR: Please note that the output voltage is independent of the load. The output voltage only depends on the input voltage and duty cycle. Changing the load could change the output current and hence output power dissipated. But you will still have a fixed average output voltage.

[waylonk]

Just what I was looking for, and more! The animations really helped.

[sermsaklimpadapun]

Great explanation, I am glad I studied Mechanical engineering.

[waelsadek]

I kind of lost at 8:30 :
Why the feedback voltage shouldn't exceed the reference voltage 8:30 ?
How the minimum output voltage was calculated 8:45 ?

[SteveH-TN]

Thanks for sharing this video and information. I was especially happy to learn something new