Thank you. I hace trouble with variable resistor symbols in schematics. Theres tons of circuits Id like to build but avoid because Im unclear on the v.r. direction. This helped.
@NourDdin-fw5mk8 күн бұрын
شكرا جزيلا لك عمل ممتاز. مرحبا بك في المغرب.
@jackcollins288519 күн бұрын
Also, bring back paper bags, get rid of plastic bags, can't draw circuits on them!
@jackcollins288519 күн бұрын
The other 555 timers make one or two good points before they lose me, so I watch many to figure this chip out. Skinny's video is the most understandable out there, step by step I learned more from his than any other. Keep up the good work!
@0dbm24 күн бұрын
Thank you , thank you Frequency vs PWM has been killing me , thank uou
@veldora__Ай бұрын
Thank you sir!!
@TheUtuber999Ай бұрын
The capacitors will never be reverse charged more than a few tenths of a Volt. Hook up a multimeter and check it for yourself. If they were to be reverse charged to 8 Volts, they would probably be destroyed and possibly explode if they are electrolytics.
@sgtbilko2950Ай бұрын
Awesome explanation ❤
@realSamAndrew2 ай бұрын
Is there a way to use this method if you want to connect a phone device to a computer to upload or download the data files where it depends on a landline dialup but you don't have a POTS landline? How would you get the 2 sides to handshake if you don't use a telephone number or a dial out/answer procedure?
@unixd0rk2 ай бұрын
for your LED "ringer", you could use an optocoupler and some arduinos or PIC chips to do some fun things. I like a good analog solution better, tho.
@radioboy752 ай бұрын
"Dial tones" are not the tones you get when you push a button on the phone. You mean "touch tones" or DTMF. A dial tone is only provided by the phone company or a special system.
@HamishMacDonald-ho7hi2 ай бұрын
This is a great video. Really good explanation. TY.
@fritzbiederstadt48692 ай бұрын
Seems to me that you could turn off the TCP/IP stack with a card in promiscuous mode. Been a whiles since I had to use something like this. Will probably need to turn off any file sharing types services that might create UDP port announcement messaging.
@0dbm2 ай бұрын
Thank you for your video , it’s all about those brushless dc motors, and controlling those ESC with a variable duty cycle , I’ll get it with your help , thanks agsim
@samanttejasr2 ай бұрын
what is the value of the diode? can i use in4007?
@jmkim2742 ай бұрын
Thank you sir :)
@coldCoders3 ай бұрын
Thank you, you are a great teacher, I appreciate the visualizations. Not many can teach technical IT topics, always find the older videos being the best
@UKsystems3 ай бұрын
i would recccomend with usb nics that are replacable
@stupidflatlander3 ай бұрын
This video is obviously old, but it was exactly what I'd be searching for. You saved my a lot of money and time. Thumbs up!
@brodonh4 ай бұрын
Hi good video presentation. I want to learn how to trigger a 555 timer in monostable mode with an opto sw. Suggestions?
It's really a nice piece of smart work and also very well explained. Thanks a lot.
@ovidius20005 ай бұрын
NoOneKnowsHowToUse555TimerWithAMosfet🤦🏻♀️🤦🏻♀️
@richardmaher26005 ай бұрын
thanks this was concise , simple and easy to understand as an intro to 386 amp chips is invaluable for me embarking on a new path at 66 years old.
@shiray99035 ай бұрын
Amazing video even today. Thank you so much for your help!
@juanmf8 ай бұрын
I needed a 1uF capacitor bridging CVV to GND to prevent overshooting at the start of the cycle. With a 12V input, max voltage was 20V.
@juanmf8 ай бұрын
Other than the isolating aspect of isolated gate drivers, is there any advantage in using a gate driver between a MOSFET and a 555?
@sametkarakoyunlu88358 ай бұрын
thank you
@davelowets8 ай бұрын
Great, simple, stable, and effective circuit.... 👌
@southernexposure12310 ай бұрын
Thank you. I'm surprised I understand the part of the video explaining the constants 0.693 and .05 is because of the 3V and 6 V concept. I'm really weak with algebraic manipulation. I have to use examples (like you showed) and then write simple spreadsheets to do my math.
@samsmith885310 ай бұрын
found using 280K Rb gave 2 seconds Thanks for the video
@michaelbenard675810 ай бұрын
Would you please explain in brief about pin 5 of the ne555 timer ic and how it works on a circuit.
@michaelbenard675810 ай бұрын
Would you please explain in brief about pin 5 of the ne555 timer ic.
@michaelbenard675810 ай бұрын
Would you please explain in brief about pin 5 of the ne555 timer ic.
@michaelbenard675810 ай бұрын
Can you make a detailed video on how you can, adjusting frequency without changing the duty cycle in astable mode with ne555
@maseria469510 ай бұрын
My circuit is doing the opposite why. It lights before I switch and when switch it goes off for some time and it comes back on again.
@davestake4411 ай бұрын
Good video , I am a beginner if you can what capacitor value did you use. Anyway thanks for the videos.
@scottmorgan537011 ай бұрын
Need not forget the counter EMF flyback diode in parallel with the motor.
@erintyres360911 ай бұрын
11:54 I was saying to myself, "that scope should be able to display the duty cycle". Then he enabled it. 🙂
@Gorim3311 ай бұрын
Cheers mate. This is a great explanation. Very helpful.
@vishaltvs Жыл бұрын
Tried on Grandstream not working could you help
@devonheilbron397 Жыл бұрын
How do you calculate the resistance if frequency capacitance are given
@train4905 Жыл бұрын
Absolutely awsome sir,thanku😊
@overengineeredinoz7683 Жыл бұрын
Amazing video and such a clear explanation.
@leos9865 Жыл бұрын
thanks
@train4905 Жыл бұрын
Exellent😊
@dalenassar9152 Жыл бұрын
In engineering, they teach that if you wait five time constants (5RC) the capacitor is charged "all the way" or "it's safe now", etc. Something like you are saying at about timestamp 7:00 I work with high-energy electronics, and had to learn for myself that this cam be an assumption that will KILL YOU!! I realize that this will not be usually encountered in 555 circuits, but be sure you are aware of this on large scales, such as the big "pulse" and "energy" caps. If you wait 5RC, then the cap is discharged down to 1-exp(-t/RC) or 1-e^(-5), which is over 99% discharged. Now consider the huge capacitors that so many people are using for such things as "wire exploding", "rail guns", "can-crushing", etc. I have seen some cap banks that are charged to energy levels like 75kJ. If such a bank is discharged 99.3% (5RC) it is left with an instantly lethal 525 Joules!! I believe that these things are the most dangerous electrical components! BTW: at about timestamp 4:00 I think there is a mistake in the datasheet in the last formula visible...isn't the duty cycle given by "D=(Ra+Rb)/(Ra+2Rb)" THANKS MUCH FOR THE VIDEO!
@fabriziobau3076 Жыл бұрын
Hi, is it possible to use 2 voip CISCO CP-7821 as an intercom without a telephone line?