The easiest LATCHING RELAY CIRCUIT to understand ever! Both theory and practical explained.
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- Опубліковано 5 лис 2012
- I love relays! They are easy to understand, you can see them working and they are still in use today in many many systems to switch voltage into circuits to make things happen!
In this tutorial, I explain from VERY BASIC terminology of a simple light bulb circuit to how to create a "latching relay circuit" and it's purpose in life!
I relate a lot of this to older generation LIFT/ELEVATOR systems which uses latching relays.
I hope this video makes sense, and sorry to all the more experienced electronics users explaining a "battery-switch-light bulb" circuit, but I always START AT THE BASICS so that everyone can understand it.
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THE MRMATTANDMRCHAY CHANNEL, established 2008:
I'm passionate about uploading quality and interesting videos for YOU, my audience.
What is my channel about? "Old lift machinery made interesting", old air-raid sirens, prehistoric alarm equipment. If "I" don't find it interesting ...then IT DOESN'T GET UPLOADED!
I always spend a lot of time editing my videos with animations, video in-sync with music and voice overs to make them this way.
My moto - "Quality NOT Quantity" - spending a month editing a video is not a rarity!
But without you, I'm nothing here. Thank you so much for watching.
...mrmattandmrchay is me (Matt) and my son Chay.
THANK YOU very much for watching :)
The best video on relays I have seen! I'm in a mechatronics program right now and the instructor did not explain these very well nor did he take one apart to show us the inner workings, so this helps tremendously; thank you!
Thank you very much for your kind comment :)
You got that right!!! I'm a gear head and am currently wiring a line lock and a msd 6al-2 step into a latching relay setup. 94 z28. 6 speed. THANK YOU SIR
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This is a master piece, when I watched this video years ago when I was about 11, it was so easy yet Complex that I could understand it because of your clear explanations!
Best video on relays i've seen so far with excellent visual and theory explained. Excellent.
Excellent presentation! Shows the circuit diagrams and the real-life equipment, with transitions between the two. Great learning experience. Kudos.
Cool, glad you enjoyed it! I did this a while ago now and did plan to make another one to explain COM-NO-NC as in my industry people have problems understand it! But it's on a long list of videos that I want to do and I might get round to planning it one day!
This is excellent! I'm in my late forties and I was rubbish at physics at school, but now I have a project that requires me to understand basic relay technology and I found your tutorial very clear and well presented. Thank you!
WOW. what a great explaination. im an engineer and this made me feel like i never really understood relays until i watched this video! THANK YOU
one of the best free info presentation. thanks very much sir. more power !
thank you!
Super-helpful, thank you! Realising that series/parallel switches correspond to logical AND and OR, and seeing how you can make a latching relay circuit, helped me design a scheme for powering a device in a car from the permanent BAT supply using the ACC supply to turn it on but not off (using a separate switch for turning it off).
Thank you for taking the time to record and edit as well as upload this. I found it relay informative. ;)
Namaste
Awesome video! Very well thought out, simple and clearly delivered!!!! Thanks for posting this....
Bloomin' heck, but through the befuddling circuits: a light was turned on in my mind.
Amazing what you go through in just stepping into an elevator.
It's a good vid to watch, .. Recommended.
Wow. Simplicity in explanation. Been struggling to understand this and you made this very easy to understand. Brilliant.
Thanks for this video!
Surely I'll be visiting for more. Indeed this has been my big question for a long time but with the help of this video I'll likely succeed
many thanks for your kind comments :)
I enjoy training and finding ways to explain things, problem is - "time" to do the videos :)
...outstanding tutorial. Thanks! And in ACTUAL ENGLISH! How refreshing!
Thanks! I get comments now and again about my accent - to me it's normal haha!
we was finding the youtube channel like that give every every every single information about any object , and today we successful to took it.
I really didn’t realize that I commented and viewed this video 3 years ago lol. I fully understand now. Nice job on this!
This takes me back to my Uni days. I loved working with relays. I always found them much more rewarding than the microprocessor/assembly code options.
Thank you for making this video. I was researching relays to use in a small project, and this video really helped me understand how relays work.
Best tutorial how latching relay work!Thank you very much!
thanks for the comment
Matt, I have to say that out of all the physics classes I attended at secondary schools, yours came out the best! Seriously... this relay video is very educative. I hope you make more of these... as you can tell, a lot of people appreciate the work you do in these videos.
That's a massive compliment and thank you very much for it!! :) :) I have plans to make further "easy to understand" electronics videos, but to do them "MRMATT" style with my perfectionist qualities takes time. Next video I want to explain building circuits using Normally Open, Normally Closed, Common, Double pole, Single pole switches.
Very nicely explained. You are genious. First ever video I saw , explains so nicely with DIAGRAMS.
Thanks a lot!
Re relays, best tutorial I´ve come across.
Ty
Thank you for spreading your knowledge and taking the time to educate us. Peace!
fantastic explanation! I'm already very familiar with relays but this video is extremely thorough and you make the diagrams really easy to follow! well done!
This is great!
Thanks so much for explaining so we'll, how latching relays work.
( Years ago; I worked with large relay arrays).
this is one of the best electrical tutorials that I have seen so far! I hope that you do more of these videos that explains the basic electrical components and how to use them
Hashim Al Sakkaf Wow, many thanks for your comment - I do have one planned that explains exactly what you just mentioned, but focusing on COM/NC/NO explainations of the relay contacts and how to use them.
Sensational tutorial mate! You should get a medal for your teaching style -- it deserves to be duplicated in every classroom in the world! If only I'd had you as a teacher in school, I'd have taken over the world by now! ;-) THANKS! Keep up the great work!
+Robert Smallwood Many thanks for your comment! I have another video planned to explain COM/NO/NC for beginners. Not sure when I'll make it as I've got other videos on the go, but it's in the pipeline.
I always explain things with complete beginners in mind. I've been on loads of training courses where the tutor has "assumed" that everyone was at the same knowledge level, then gone on and on, leaving less experienced people behind.
I love explaining and training also. I always think that, if the person doesn't understand what I'm training, then it's up to ME to rethink how I should explain it differently so they do understand.
Probably the best video on relays! Thank you!
just started learning PLC and i love your explanation. keep em coming mate! subscribed!
thank you so much .. the best explanation i have ever seen ... you are awesome
VaRuN SiNgH Thanks very much! :)
Good question!
The one that I am using to construct the circuit is a DPDT - Double Pole (2 sets of individual switches inside the relay) Double Throw (each switch has 2 contacts, one when it's on, one when it's off).
The relay is 12volts.
Buying the right relay is the easy bit, generally a 12v DPDT relay will suit most applications, the difficult bit is understanding "what connector does what" on the relay base - some are easy (like 12:01-12:05), some are not marked as clearly as this one is.
The best,,,,,,, ,I've been searching for---ev--------er to find a Good video on 8 pin latching relays and how they work. Easy listing Easy watching ,,,,,,thanx
wonderfully clear and concise . I have a better understanding now thank you.
The best video i ever seen I want to build elevator model with real life solutions and now i can build it THANK YOU SOOOOOO MUCH
Krzychxxx me too!
Another great video. I enjoy them all. Been an elevator "nerd" my whole life. To this day I still will peek in open elevator machine rooms or watch elevator maintenance personnel doing their thing.
+Fireship1 Cool! I didn't know there were other people around that liked lifts/elevators, but since I joined youtube in 2008 I've learnt that there are many people, including you by the sounds of it :) Thanks for your comment
Fabulous... a clear explanation. Thank you!
This one of best videos on relays .
Well I guess I’m late to this video but I can tell you as a tech . It explains things the best . I hope young techs see this thank you
Great vid, very educational, made very clear, could be used at school level. Look forward to seeing more.
thank you for the detailed explaination of relay and its types , this detailed explaination helped me a lot
Very good job demonstrating! thank you
relays are became beautiful to me only because of u sir....
thank you
Your explanation helped me a lot, in particular your practical example. Thank you so much.
I can now do a self latching SPDT relay!!
Excellent! Glad you found it useful :)
Awesome circuit with great explanation! Thank you for sharing.
have a practical exam this afternoon using the latching circuit with a fluorescent lamp i can now fully explain what i want to say thank you!
I'm really happy that this video helped you :) Many thanks for your message
The best video on relays I have seen!
Bravo ! Perfect ! clear explanation ! Thank you Sir !
Latching relays are clever, I got it now finally thanks to you. Didn't understand it when I was in college, I which I have seen your lecture back then. :)
cool, many thanks for your comment! :)
Thank you Sir for sharing your knowledge, clearly explained!!
thank you so much for the information above different relays , this information helped to know in detailed manner about relay and its operations
its an excellent tutorial, It brought me back to the old Cross Bar electro relay telephone exchanges, if you want to see relays and understand them its mind boggling, the exchanges are full of them, it takes 3 weeks to teach the students on just how to get dial tone which is tracing the circuit from the picking up of the telephone handset to obtaining dial tone, I never did the course as I didn't work in the telephone exchanges, goes to show how smart the technicians had to be, well over my head, unfortunately when the semi conductor was invented and the exchanges used micro processors their knowledge became obsolete.
Thank you for posting this! Unfortunately, I have a hard time understanding how relays work, especially when in use with I/O ports. This helped simplify and clarify.
The work involved is very obvious. Excellent work!!
Fantastic. Thank you for taking the time to break this down. You really should be an instructor
Thank you, this has been very helpful. I now understand what relays are and their function.
Cool, glad it was useful for you :)
The perfect explanation in all ways. Thank you, sir.
Thanks very much for the comment :)
What a job well done. Fantastic explanation. Kudos to you
Thank you for the tutorial... Best I've seen!
Many thanks for the nice comment :)
Very good video,Lift companies should show these to Apprentices,Mates,even fitters.
GREAT, absolutely great. Wonderful video. Thank you very much.
Such a good video! Thank you!
This was really helpful .I always wanted to know about relays
Excellent video - and I've seen plenty of these before getting to yours! Thanks!
cool, thanks for the comment :)
Best described latching relay circuit on net.
Thanks a lot ❤️
Thanks and welcome
Thank you 😊 your explanation was excellent !!
Cool, thanks for the comment
I enjoyed this video,it gave a very good explanation of a circuit,from simple to complex.
Cool, thanks for your comment.
Oh, and i forgot to say, excellent tutorial!
What a perfect explanation!
Cool, thanks!
Very neat explained.
OMG!! You totally helped me a lot!!! I spent 3 hours trying to figure it out. Saw this video and got it right away!
Brilliantly explained - Thanks very much
getyaboogieon Many thanks!
Awesome video. Very clear how this works. I'm a complete starter in this, just doing it for kicks and hobby. So you have explained how to use a "soft button" to turn a system on, how do you get the same button to operate as the off switch in the same circuit so that every other push is on, off, on, off, etc...
This could be done, but now you're probably introducing transistors and 'flip-flop' circuits. I'm not aware of an easy way to do this with just relays.
this is the best presentation i have seen thanks for this video !!!
Thanks for your compliment :)
Thanks so much. Cheers Stuart 🇦🇺
Very good animation, very good explanation with a nice voice, perfect instructional video.
Thanks
Excellent video ! Explained very well, Thank You !
+Keith Shreve thanks for the comment :)
Thank you! This helped me design a simple circuit to latch an output from a small PLC. I'm holding an output until I see confirmation from another modules output, then I release the output with the other SPST relay. Thanks again.
Cool, glad it helped!
Discovered this by accident. I was an electrical fitter in a power station, in Scotland, for 35 years and in the early days we did our own maintenance and repairs on the lifts. This really takes me back. Plc control came in and specialists took over maintenance and all we did, in house, was emergency egress of passengers when the lifts broke down. When we did work on them I remember scratching my head trying to work through sheets and sheets of schematics!
It was the same in the BT (British Telecom) buildings - the relays in the motor room lift logic were very similar to the ones used at the time in the telephone exchanges - so they kept the old lifts running using their own engineers (or so I'm told)
i learned. thankyou for sharing.
That Was Fantastic. Keep up the great work. Nick.
+Nicholas Aarons (Nick Mini) Many thanks Nick, I have a follow up video planned, but no dates as of yet (takes loads of planning, voice overs, etc to finally get a video like this up)
You are very skilled at explaining things. Very well done.
+TheZionPhil cool thanks very much. I've been looking to do another one like this but all takes time to plan and record.
+mrmattandmrchay hello sir,where did you works..on youtube only or anywhere else?
Thanks for the great tutorial!
Best explanation ever! Thank you so much 😊 👌
+Ashwini Damle thanks for the cool comment :)
Very nice! Thank you.
Thank you for your time. great video thank you.
Thank you. Excellent Video!
A masterpiece, thank you !!!!
This F U KING owsome. simple and perfekt !! Thanks a lot~Bless you and happy christmas you all who made this!!! Keep on like that i am with you.
Hey problems and thanks for the comment. I am planning another video to explain com no and nc. Not sure when it will be up though
Thanks, really helpful!
Best video yet, great job
Like the way u explained this
Very well done--Thanks!
this video was by far easier to understand than looking images up on google
Fantastic!!!!!!!!
I love Relays.
me too - most of my channel is based on lifts/elevators that use them :)
thanx for posting understood clearly
@mrmattandmrchay Thanks a lot, really useful tutorial. I think this is especially great if there are any beginners that want to start using relays. This could come in handy for me. Its nice to have a little bit of extra electronics knowledge when you can.
Awesome explanation!!!
Excellent very clear explanation.
+Steve Smith Thanks