Learn Electronics For Everyone : What Are Inductors? Beginners TutorialGuide
ฝัง
- เผยแพร่เมื่อ 3 ก.พ. 2024
- A Beginners guide to inductors, without any maths! LEarn what an inductor is and what it does.
The Learn Electronics Series
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Thank you
Richard
Richard this is an excellent video. Every video I’ve watched on relays explains how they work but they never explain why they work the way that they do. I’ve learned a lot by watching this video. Thanks for sharing Artie. In fact I will take a relay and do exactly you have done. I own all the the equipment that’s needed by watching all your other videos. 👍
Awesome! Can't wait for part 2, that was fascinating. Inductors have always interested me because they are the most hardcore-looking and mysterious components. Let's face it, they look like they'll blow your bollocks off.
Waiting for part 2 with anticipation! Thanks, Richard!
Amazing explanation. simple and clear. Thank you Richard
Thankyou Richard from Sydney Australia: for explaining an inductor and the parts of a relay. I wondered what "they" did. Located with the fuses in the engine bay of motor cars, you can see the parts at break. Such as the spring and wire connector. I knew an electrical charged winding caused a magnet . I often think of doing it to a screwdriver.
🌏🇦🇺
THANK YOU! Can't wait for part two.
Fantastic, thanks.
Master, great explanation.
Loving it. Can't wait for part 2. I'm hoping you are going to cover coupled inductors (aka flyback transformers) vs normal transformers as I just learned about them yesterday.
Thanks for sharing 👍
Great!
When a relay contact is broken like this, even without the inductance of the coil, you can still often see sparks - due in part to the inductance of any wires, but also due to the fact that the breakdown voltage is much smaller for a tiny gap (which breaking the contacts starts with).
Excellent
You
wow , awesome
THANKS ! Your videos are always very interesting! May I know what type of camera you have with a very good zoom? This can be a bit complicated for my device reassembly, thank you
HI Richard, Since I'm thick lol, Your drawing shows current going through the coil via the NC contact. When energised those contacts open switching the coil off So my question is how does the coil get energised as the NOcontact in the sketch doesn't go anywhere?
Slightly confusing (in my opinion only). When the contacts open, the coil is de-energised, and the spring pulls the contacts back, re-energising the coil. Yes, there is back-emf, but ideally requires a different setup to show it.
Heya, really intersting especially the 516V were is that coming from ???
Talk about a cliffhanger lol
Now i know why you've set it to 100v per division, that's a high voltage spike from a 12v relay
Hey kind sir.. I am attempting to diagnose a PCB board from a Silent partner tennisball machine. The machine was used only a handful of times and my nephew loaded the hopper too full and the board got shorted. The company knows what the problem is because they immediately told me to remove the PCB and send it in at a cost of $150 dollars they will diagnose it repair it and send it back. The machine is no longer under warranty and so I was first going to try and find the short
The PCB board controls the function of the machine motors and was unresponsive to any input. I have tested all the motors and they work fine ... Any idea or guess at what components I can look for and test on the PCB?? ... Any help is obviously greatly appreciated as I'm excited to learn how to do basic troubleshooting.. I recently taught myself how to remove and solder in components but the testing is little confusing.. I have a new nice auto dm from kaweets
thanks .. luv your content and will donate graciously for any advice you can offer that leads to my circumventing their extortion lol
I'm quite sure that most viewers (if not all ?) has fooled around with a good old fashioned doorbell, driven by 2 D cells.
- and have been scared by the violent electric jolt it can serve you !
Now you know why 😂
1st
Not a former, but ferromagnetic core - the essential component.
Yup. What he is calling a "former" is invariably called a "core." "Former" is used for something that just mechanically holds the winding. "Former" and "bobbin" are pretty much synonymous. There are, of course, "bobbin cores."
@@d614gakadoug9 I think former, bobbin, core all the same pretty much. Can we add ferrite bead to that as well? I did describe what it is made of and what it does at a basic level. I'll try to call it a core if it makes you guys feel better. 🙂
@@LearnElectronicsRepair
It isn't a matter of how someone feels. It is a matter of using the language that is accepted in the industry, which is rather important if you are purporting to teach others..
A bobbin or former is used to "hold" the winding. The core is then inserted into the winding assembly to make the finished inductor or transformer. Bobbins can be had in a wide range of types - different polymers, with or without PCB pins, single section and multisection, horizontal and vertical.
Toroid and rod cores are used without a former. With E cores and derivatives formers are almost always used for high-frequency inductors and transformers and rarely used for larger low-frequency inductors and transformers.
"Bead" is usually used to describe a tubular shape that typically is simply placed over a conductor or a group of conductors, though occasionally beads are wound with more than a single turn. There are multi-hole beads that are wound. There are two-hole beads that may be wound with a single conductor or with two or more conductors to make a transformer. Something can be called a bead yet be very large, though larger ones may be called "suppression cores" because they are mostly used for control of EMI/RFI.
You can learn lots about cores and formers from catalogs from companies like TDK and Magnetics, Inc.
Your relay experiment reminded me of two methods commonly used to start pulse jet engines.
The modern method uses a relay like yours to pulse a circuit and create a high voltage spark to light the fuel.
The old method uses something you probably never played with even though Henry Ford made millions of them and they are still common in the used market and that is his spark coil box.
These wooden spark coil boxes have similar contacts to our modern day relays but they also have a capacitor built into them.
Maybe a capacitor added to your modern relay can up the output voltage as well?
I respect your work wery much, so you do not need to worry about my comment so much. Just a little suggestion, you talk about induction of current, what is not correct. Accordingly to Faraday law, we can talk about Induction of voltage.
Best regard to you, Richard.😊