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I am not polarized about this video at all I had a barrel of fun watching it and I think it was great you obviously are a very intelligent individual and an excellent teacher I am bowing down in respect. ❤❤❤
Thanks for watching!
Nice, but why not just use a hex inverter IC? Also, does a 47nf capacitor work? Or a 470nf electrolytic? What other values?
Major point of this circuit is that the NAND gate is a universal gate, making it more versatile than NOT gates. So unless you know that you only need NOT Gates, then stocking up on a bunch of NAND gates (or NOR gates) is a good idea if you want to make random logic circuits. Plus, you might need a NOT Gate and a NAND gate, so it is a good idea to know how to turn unused NAND Gates into other logic gates. And you should be able to use a wide range of capacitor and resistor values. I don't known the limits, but definitely don't go so low on resistance that too much current flows.
When I put it in a simulation software, the output is always high
Circuit simulators don't always factor in all the component properties.
Thanks, I got some assorted logic gates and am playing and learning. 👍🏻
Nice!
Excellent explanation!! Thank you!!
Glad to hear, thanks for watching!
How would you suggest adding LEDs to the circuit to indicate the active supply, without draining the LifePo4 over a few days? I'd like a clear/obvious way to know which supply is in use, and given 15v AC supply, I presume the battery won't be touched for any small percentage until an outage.
I would probably light an LED directly with the main power supply. If the main power supply turns off, then the LED will turn off and you'll know the load is getting power from the battery. If you need to power a notification system, brief flashes every once in a while or short chirps will be noticeable without drawing much power from the battery if you add a good monitoring system.
I would often connect 3 white led's in series with a current limiting led in series for use in my vehicle off the 12v battery, but I found this to be a very bad idea, and the reason is the voltage swing of the battery from 12v to 14.5v when the engines alternator charges the battery after starting, it then would fall back to like 13.7 for the rest of the journey. my leds were the usual 1w bead led's at 3.3v so upto 300ma with good heatsinks, I would run them at 100ma, so, 3x3.3v=9.9v dropped, 100ma 'required' current, 12v, 24 ohms... this gives me almost 1w of light spread over 3 leds running cool with a long liftetime. Problem is the initial first few minutes of 14v, the current goes upto 200ma from just 2 more volts! This puts the leds upto 2w and the resistor now has to pass 1w This causes a noticeable difference in brightness and generated heat. So i went back to using one 91 ohm resistor per led but then it needed to be a 1w resistor! now my heat has moved from the led, into the resistor! I have nearly 1w of heat in the resistor and 1/3w used by the led!!! 30% efficient! It seems theres no happy place for such simple circuits and some voltage regulator is required to give like a stable 10v from the 12-14, which is what I did for my interior lighting. sometimes even the simple things can be a complicated journey. great video thanks for reminding me of the struggle I had lol
Yeah, I made some videos based on 12V battery circuits. I design the circuits to run on 12V to 15V because LiFePO4 batteries are commonly charged at 14.6V. There's buck converters that lower the voltage while conserving most of the power so that they don't get very hot compared to resistors and regulators.
Cool circuit ..
Thanks!
List of my videos kzread.infovideos www.youtube.com/@Electronzap/community for most of the diagrams I've used in my videos. www.amazon.com/shop/electronzapdotcom As an Amazon Associate I earn from qualifying purchases. Americans should check out one or more of those links before making any purchases. There's no extra cost to you. www.patreon.com/electronzap electronzap.com/ www.reddit.com/r/ElectronicsStudy/
Nice explanation! I had no idea that a 555 could operate as a Schmitt trigger!
Glad to hear, thanks for watching!
”Trimpaaat”
Awesome. My dog ran in here when he heard it.
Good times :)
1/4 watt gets put on the ohm meter for my old eyes. 😂
But how you decide from which side resistor you looking? Form left to right is not the same as from right to left.
Resistors never start with gold or silver, that is the easiest clue. If it's a 1% resistor then hopefully there's a bit of a gap between the "value" bands and the "tolerance" band at the end. If not, you might need to break out the meter. Eventually you build an intuition for common values and it becomes less of an issue. After 30 years I'll still check on a meter if it seems ambiguous (is that band brown or red? lol)
What is the purpose of that resistor in the circuit? Is it to limit current through the LED?
Whoever thought blue resistors were a good idea for readability needs to get a little older! The colors just darken and blend against the blue! Beige were MUCH more user friendly.
Yeah I know how to read it, but my eyes 👀 have a hard time seeing the colors bands on the dark blue 1% resistor. The old 5% beige resistors were a lot easier to see.
Thank you for sharing
Thanks for watching!
List of my videos kzread.infovideos www.youtube.com/@Electronzap/community for most of the diagrams I've used in my videos. www.amazon.com/shop/electronzapdotcom As an Amazon Associate I earn from qualifying purchases. Americans should check out one or more of those links before making any purchases. There's no extra cost to you. www.patreon.com/electronzap electronzap.com/ www.reddit.com/r/ElectronicsStudy/
Excellent demonstration/tutorial video! Great stuff!!!
Thanks for watching!
Interesting. I'm going to build this. Oh by the way I finally got The Art of Electronics from Amazon. I can see that it's going to make a good companion to the other book I have; Practical Electronics for Inventors.😊 I love how you teach. I take screen shots of your schematics so I can try it out on the Bread Boards.😊
Very cool, I do post the diagrams to my KZread community page when I first use them in videos. Plus a link to that video.
Hello, new friend from Indonesia here
First on to comment❤❤😊😊🎉🎉
Congrats!
Many thanks!
Thanks for watching!
Why the resistor with the arrow connected to power and ground by pin 6 and 2? I don't see it Im new but I only see the two led resistors, unless the jumper wires from pin 6 and 2 act as resistors in a way.
The resistor with an arrow symbol is the blue trimpot, which is a small potentiometer. It is a 3 terminal resistor. One terminal is a wiper that slides across the resistive element inside the component, changing how much resistance is on each side of the wiper. Trimpots can be used as a variable resistor, but is usually used as a voltage divider. It's being used as a voltage divider in this circuit.
@@Electronzap thank you 🤙🏾
Great video, that is the way how a mini split inverter works
Thanks for the info!
Wait what’s the thingy you connect the 9v power jack to??
NICE, ...1st thing that automatically came to mind was LDR + pin 5 ????
You can make a clap switch with this
Noice
List of my videos kzread.infovideos www.youtube.com/@Electronzap/community for most of the diagrams I've used in my videos. www.amazon.com/shop/electronzapdotcom As an Amazon Associate I earn from qualifying purchases. Americans should check out one or more of those links before making any purchases. There's no extra cost to you. www.patreon.com/electronzap electronzap.com/ www.reddit.com/r/ElectronicsStudy/
Thank you for doing so much work to teach us electronics. You sure find tons of circuits. Im interested in encoder ICs for RF and infrared this month.😂
Thanks for watching! I try to come up with as many circuits as possible. I'll try to remember those topics.
pin 2 and 6 are connected so is the 555 timer in astable mode? and is there any other way of using the LDR without connecting both pin 2 and 6?
Astable keeps cycling on it's own. When a signal voltage changes the output instead of a timing circuit, then it is a switch circuit. Can use an LDR on just one input, but it probably won't be as simple of a circuit. There's tons of ways you can wire up the 555.
Thanks! What is the lowest cut-off voltage?
One of the sellers on Amazon has an image of the board, showing that 6V to 60V can be applied to the input power for the board and the load. That the best lowest voltage info I can find so far.
@@Electronzap thanks again! I believe the 6-60V module is a different model. That module is more expensive and may be overkill for the project and does not fit my budget when buying in large qty.
What actually function diode over there?
What actually function diode over there?
What actually function diode over there?
What actually function diode over there?
Excellent tutorial! Interesting and informative!
Thanks for watching!
@@Electronzap Great stuff as always!!!
Just to mention: I have worked on automatic jail door controls. I got a police siren, and I scoped the sond signals...they are identical to the analog 555 RC waveforms. I may shift the freq. range more toward the resonant freq. of the human ear, and see how they like it. I've heard that during tests, that there can be regions where it can be hardly heard by older drivers and in bad weather. IIRC, this one was >5kHz abd the resonant freq of the ear is more like 3kHz. The signals come before the 100W amp. so it should be easy.
Very cool.
I have a question, I have one that I set the time on mode 5. It is set to on 5 seconds and off for 122 seconds. it cycles fine for 3 or 4 cycles and then the number comes up 008 and it cycles on and won't shut off. Any idea what might be causing this to happen. Thanks for the great video!
I haven't used this in years. So, unfortunately I have no idea. If I was going to refresh my memory of this board, I would rewatch my videos. So, they are the only help I can provide.
Thank you for posting this. I bought a package of mixed ICs and am learning what they do. Subbed.
Nice, that's what I like to do.
Thanks!
Thanks for the support!
I had the volume off and simulated the circuit just looking at the schematic when I realized that the 10k was a potentiometer. (FACEPALM). :P
haha thats crazy bro
Like I was making some oscillators ne555 and then I reached upon lc oscillators So if I make ghz frequency according to calculations So It would produce microwaves.
So like how can I use it to make you know cook foor and stuff or anything like lighting up bulbs something like that
Or can I use it for driving some transformer or anything
Could drive a buzzer/piezo with audio input amplified with a transistor
My own police lights!
Yeah, good use.
Fascinating the use of single diode , and your choice of equal resistors doing what they do - also a pair used for 50% duty cycle- pulse width modulation ETC just a great IC
Thank you for this video. We can make a lot of projects with the NE555. I'm sorry if my english is not very good. I speack french.
Nice, thanks for watching!
@@Electronzap you're welcome
Make more videos
Fun circuit
Some time ago, I did the math for this circuit. In case it is helpful, I get that the frequency of the 50% DC wave is 1/(2ln2 RC), Where 2ln2=1.39...so f=1/(1.39 RC) Hz. THANKS FOR THE VIDEO!!