How Boost Converters Work (DC-DC Step-Up) - Electronics Intermediate 1
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- Опубликовано: 9 сен 2016
- A look into how boost converters work in a very visual format. Try this circuit: goo.gl/nkHq9H
Boost Converter Wiki: en.wikipedia.org/wiki/Boost_c...
Software: Everycircuit.com
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It is SO hard to find videos that clearly explain the step by step function of a circuit. Thank you!
"As it says video gives much more clarity than thousand words". This is the best video on RUclips for boost converter. Thanks.
For the first time I actually understand this. Great explanation.
awesome buddy! I am preparing an exam and had a lot of trouble understanding this, now it is easy! well done!
Very clearly explained - which is a real skill when dealing with complex topics such as these - thanks!
One of the best explications I have ever seen. Period.
This is the most helpful description of a boost converter I've seen.
I agree
Thanks a lot, I'm studying mechanical engineering and whenever I come across electronics I tend to understand very little, but I've fully understood this circuit thanks to your video. Will definitely subscribe and try to learn more about electronics :)
Many electronic devices need more power than can be supplied by a battery or power supply. This is where a boost converter comes in. It takes the input voltage and steps it up to a higher voltage, supplying the necessary power to the device.
Contrary to that, electrical engineering students understand mechanisms/machinery easily. I think it's because of that fact that mechanical engineering is physically more relatable than electrical engineering.
@organicfarm5524 Back when I was an engineering technician, I was more talented/interested with electronics. I did a lot of prototyping, including populating PCBs.
When I was moving on from the company, the owners told me that I should have more confidence when it comes to the mechanical side of engineering. One of the owners, a mech engineer, said that mechanical engineering is mostly just "common sense."
I still think about that. I think the thing about mechanical engineering, is that it's much more applicable and intuitive. You can look at bicycle and easily observe how the pedals turn the rear wheel without needing measurement tools or prior knowledge. You can't really look at a board or circuit and understand it's purpose without prior knowledge or measurement tools.
This intermediate series is really useful, thanks and I hope you continue to make them.
Boost converters are a type of DC-DC step-up converter. They are used to increase the voltage of a DC supply. Boost converters are often used to power devices that require a higher voltage than can be obtained from a battery or other DC source.
There are many factors to consider when selecting a boost converter. The most important factors are the input and output voltages, and the current requirements of the load. Other factors include efficiency, size, and cost.
Boost converters can be divided into two main categories: linear and switching. Linear boost converters are simpler but less efficient than switching boost converters.
EveryCircuit? I love that program. Dead simple but actually very powerful for beginners to learn how to draw circuits, design them and simulate them. On a tablet ideal for mobile tinkering.
This is a great channel, you should really have more subs. Will recommend to my fellow ET students.
DC-DC step-up or boost converters are a type of electronic converter that are used to increase the voltage of a DC power supply. They are commonly used to power devices that require a higher voltage than what can be supplied by a battery or other power source. Boost converters work by taking in a low voltage input and converting it to a higher voltage output. This makes them a really useful tool for powering devices like Arduino boards, motors, and LED lights.
Thank you having clear voice and reasonable speeds of explanation. I would think some call this a "Buck to Buck" convertor. I understand automotive electrical systems and a few components plus using a lab scope. As a dealer tech since the mid 70's, I am trying hard to make a simple HVAC actuator control circuit. It is a low current dc motor, plastic gear reduction to drive a door to direct air into or around the heater core. The dash controls are mechanical but I am handy in fabrication. It could be "Heat" but with a linear potentiometer. Since actuators can be simple, this on is as it drives a pot for feed back. Move the dash lever, the motor turns on and moves to new location and stops. Yet, it has to change directions. I was thinking of an OP Amp, the 2 pots as voltage dividers for input. To make it easy, use mosfets in "H" bridge. Just working out on paper, then test and build. Actuator are $10 and I can make a 5 Vdc circuit for mosfet control.
Like you, I am into motorcycles but started on lawnmowers to make the $1 it paid in 67 and better than mower with wheel driven blades. Self taught as Yamahas where metric and metric tools fit standards, but not the other way. In the county, word of mouth found Datsuns, Opels and everything else coming to me to fix. It didn't hurt growing 7" to 6'3" at 11 and had tools w/unused machine shed on the farm.
I just want to built this as I am updating a 67 C10 PU and auto trans where manual is. Plus updating the engine on the cheap. This way I can have my vehicle to drive to Dr. or store. My wife has a 96 Corolla w/160k so need backup vehicle she can drive and operate. Just simple but reliable. Sad to say she had medical issues and I will have my 4th fusion at L3-L2 and hopes it the last. I don't have a Facebook or cell phone, but get by. If you have an idea for a new video using two op amps to drive H bridge, I will be watching your channel. Thanks again for very good just job on the videos. Subscribed! Omaha.
the explaination is so smooth & simple, really worth it watching
Most helpfull electronics channel ive seen . You make everything so easy to understand
This is cool. I knew what a boost converter is but I never realized how easy it is to build one
This is the one of the best video ever that explains about this in very short video.
your channel should have more subs.
Thanks :) I am sure it will grow over time.
i agree!!
Tampatec ikr it should have way more than yours. ;)
What power supply is he using to the base of the mosfet?
No shit Sherlock ;D
Awesome explanation, demonstration, and tools to show the workings.
OMG what an explanation. Love your work. You are making me inspire to do great work like this.
Simple way to make one of these - 4093 Schmitt NAND gate. Make the first gate into a Schmitt RC oscillator. Use other 3 NAND gates as inverters connected in parallel, to buffer the oscillator into the MOSFET. Use an NPN transisor to pull one input of the NAND oscillator low, stopping the oscillator when the transistor is on. (Because of the inverters between the oscillator and the MOSFET, the MOSFET will stop OFF - very important). Tap off a small proportion of the output voltage using a resistive divider and use this to turn the NPN on when the output reaches the desired voltage. Use high value resistors to avoid loading the output.
I first saw that circuit as a TENS machine. Since used it very successfully as an LCD backlight driver.
Make sure the diode is a fast switching diode or schottky rectifier. Ordinary rectifiers line 1N4001 are too slow to turn off, and drain the output capacitor when the MOSFET turns on. Even when just breadboarding, I found a slow rectifier is rubbish.
Great great great channel. I have been looking for you for centuries.
This channel deserves million subs.
I hope to see more of these. I just finished all of them by the looks of it.
Amazing description ! Thanks a bunch
Very good clear audio.
Great video with an excellent simplified explanation.
Thanks for your channel. Im really stupid, but I love electronics. Your videos help me a lot to learn. Thanks.
Great video. Very straightforward and understandable explanation.
Excellent excellent excellent! I have been building these things for quite a while now, and you are spot on!
Question. Can this circuit be used to boost power from let us say a 22 volt battery to heat a heating coil resistor to heat 6dl water in a 1 litre volume for a duration of time?
I learned something today, it’s not often that I can say that for sure.
Thanks.... you have just made it easier to understand the working principle clearly.
I have such an appreciation for this video. Thank you
this channel is AMAZING !!!!!!!!
Very good explanation and the animation is on point. Thank you very much!!
Thanks a lot, this movie is very useful! It describes the operation of the boost converter in a really clear way.
good of you to make this video showing how an L works. esp. the part about the V across the L reversing and the current flowing in the same direction.
Amazing, really useful for students man. Thanks ;)
i havent seen a such clear video ever ! thank you so much
You explain things very well, thank you
First videos that I really understand electronics!
sir you are doing really good job using every circuit....please do more videos on power electronic converters thank you
WoW. This i such a clear explanation. Thanks man. Awsome.
Definitely subscribing to this channel! I'm a visual learner so i'm expecting more on this channel
I loved it, thank you !!!! Very insightful
Well explained.
One thing to help remember inductor behaviour is they attempt to keep the current going in the same direction, when they "collapse".
Wow holy helpful series thank you sooooo much. Reminds me of a ram jet pump
Nice video. Great demonstration. Thanks!!!
simply brilliant. easy to understand. explicit .
Great video!! Clear and concise!
Hello, nice explanation!
What is the software you are using for simulation?
Holy shit! A boost converter is the same as a ram pump!
Hydraulics and electronics have lots in common !
Angel Gonzalez Physics enit I'm guessing
Just like the great Pyramid
that is exactly what i'm thinking too and it got me here
Read a guys comment on ram pump video
An excellent demo, thank you.
Brilliant! Do you plan on providing actual components/values for something common like Input 5-9V 6A, Output 6-30V? Thanks for this vid!
Thank you for the impressive explanation
Excellent presentation; thank you. Though, I didn't get what happens to the current? Let's say I am inputting a 12V, 30A from a power supply, and I want to boost the 12V to 24V. How much of the current will be available on the output side? Thanks.
Thanks for the best Boost Converter explanation on the internet !
One question though:
If I have an alternating load on the end of this circuit (let's say a color changing LED-Stripe), wouldn' the alternating current draw of this load require an adaption of the switching frequency on the MOSFET's gate to keep the voltage steady?
Thanks in advance ! :)
What a great video. That was very interesting. It's the same principal as an ignition coil works in a point type ignition system in a car.
Thanks for posting. I get a simple yet great education.
Barry, KU3X
This was super clear. Thank you.
Superb basic knowledge of converters
I love you man cuz you explain the circuit very good
This is so cool to see!
thank you for your videos! its helping me a lot
Your videos are excellent!
Very nice explanation. Author should be proud of himself, wish i had doctor like this in my EE study.
Ps-how out voltage control implemented practicly in this circuit? As well as clock for MOS (bet it isnt opAmps and crystals)
So very excellent... thanks it helped me in my project
Hello! I'm doing a project on a solar bike with boost converter. I like your idea and very simple. I could apply it in my project with minor modifications. But, I wonder what kind of software did you use?
Fantastic explanation
Hello, could you tell me please, what timer 100µs you put at the bottom of the circuit--- and the way you have connected it ?Thank's !
When the transistor is off and polarity across the inductor becomes reversed, does that interfere with the input polarity somehow?
Liked and subscribed. Super explanation.
Very nicely explained.
Can you make a video about buck and another about buck-boost converters? That would be very helpful :D this channel has been amazing so far
Could you do another add-on/follow-up video that explains how you might use the same techniques to create a split-rail DC supply?
Excellent explanation!!
really good explanation
Good demo, thanks.
Great understanding....top quality
Hello. Very good video. I realized that I am looking for a similar boost converter, maybe you could recommend me a chip?
What software are you using to build the circuit in the video demo?
InfinityOrchid Someone said in another comment it's called "Every Circuit."
great effort, nice explanation
Simply well explained I subscribed...
Great video. The only thing that's missing is the loss of amperage mechanics. As voltage goes up, the amps go down dramatically.
What a nice explanation and animation.....thanks...
I absolutely love your videos although they would be absolutely flawless if you would consider explaining and writing out how the math values are decided and calculated for the individual components for example how do you decide that the value of the inductor is 100mH or the capacitor is 10uF or the N-Channel MOSFET is 100uM or 200nM
A magnificent explanation....
Thank you very much very educational really enjoyed and subscribe nice one 🙂
really helpful! if you ever do continue the series can you post a video on buck converters?
More circuit breakdowns please!
Beautiful video
awesome. thanks for fantastic explanation
Thank you for your explanation of the boost converter. Unfortunately, I still have a question on their working.
When the mosfet is off, the capacitor is charged by the circuitry. However, when the mosfet is on, there is a direct path from the input power source to the ground.
That means that power is still being used, unlike the boost converter. It also means that the boost converter should short circuit.
But it doesn't, so there has to be something I cannot figure out... Do you know what is It?
It's actually the inductor, when the mosfet is on the inductor act's as a load and starts converting the electric charge into magnetic field, when the inductor saturates ( reaches the maximum magnetic field it can store, measured in henry) it will be a direct path and the mosfet will get shorted. This is the reason why high frequency converters can use smaller inductor like 10uH because the "on" time is shorter and it will not saturate. Low frequency converters need bigger inductor, if not it will saturate and short out. Most dedicated dc/dc uC controllers have a current feedback as soon the current starts rising because the inductor starts saturating the mosfet will be close to prevent short circuit.
Since you are working with AC, there won't be a short.
If the mosfet would be on steadly, then yes, a short would happen.
But think as an AC circuit.
A 500 uH inductor switched at 100 kHz would act as a 315 ohms impedance.
Since you are driving the inductor with a pulse train, the back emf is the responsible for stepping up the voltage.
Remembering that V_backemf = -L di/dt
Where di/dt is related to the duty cycle and the switching frequency.
@@andrasszasz4373 If inductor is saturated, mosfet will get shorted.
shorted means what?
mosfet become faulty?
@@anandsivathanu8517 Shorted means that the power supply's positive and negative rail will be shorted (same thing as if you take the powers supply positive and negative wire and touch them together), this will cause excess current through the mosfet which will result in excess heat and the mosfet will burn out.
@@andrasszasz4373 Thanks for Your Kindly Reply Mr.Andras Szasz.
I understand your reply.
Excellent video well explained
Great graphics. Great vid.
Thank you very much for your explanation.
God bless you my boss. Great explanation 👌
Nice job, thank you for the video
This reminds me of the old fashioned coil/points system used on cars and motor bikes to produce the high voltage spark to the spark plugs, way back when long time ago.
it was brilliant. liked and subscribed
A boost converter is a DC-DC step-up converter.
It takes in a low voltage and outputs a higher voltage.
The boost converter is a popular choice for powering microcontrollers, sensors, and other electronics.
There are many different types of boost converters on the market. Some are simple, while others have more features. When choosing a boost converter, you'll need to consider the voltage requirements of your project, as well as the size and weight of the converter.
Boost converters can be used to power projects that require 5 volts or more. They're also a good choice for systems that need higher voltages, such as 12 volts or 24 volts.
Thos helped me understand them so much better 🙏