THANK YOU VERY MUCH ! Haven't studied some of this stuff since electronics classes in high school...You have great graphics and to the point explanations.
@@Brian-mf3ry we had optional tech center classes available to us in the 1980's. It was way more interesting than some of the other normal electives. It was a 2 year program and since both of the electronics course teachers we also instructors at the the Grand Rapids community college and taught the same curriculum for the electronics technology associates degree they set it up to allow us to be able to test out of the two-year program in college if we completed the tech center 2 year course. Sadly the program and facility are now defunct
Hi Dejan, your videos are very clear, educative and highly illustrative. I was going to point out the mistake your last formula (because R1 and R2 are clearly in parallel since they both connect to 5V). But then I noticed nagarjun rao correcting it
I usually see schmitt triggers in the positive feedback inverting configuration. The circuit here is using positive non-inverting configuration. I'm not sure if it will work. Also, I think that using virtual short concept in your equation (Va=0) is not valid because this only exist in negative feedback configurtion.
If I'm not mistaken, that last formula you displayed (where Vout = 5V) is wrong. The formula to calculate Va should be Va = [R3 / (R3 + R1 || R2)]*Vref. Since all the resistors are the same value the answer you got is correct, but your approach was not.
|| means "in parallel with". For example, R1 || R2 is asking for the resistance of two resistors, R1 and R2 connected in parallel. R1 || R2 = (R1 * R2) / (R1 + R2)
From what I learned in college, resistors that are in parallel share both nodes. Why, in the first of the last two examples, are R2 and R3 in parallel?
Your Va formula for non-symmetrical inverted schmmit trigger is incorrect. It should be = [(R3)/((R1||R2) + R3)]*Vref. You just got the right answer because all 3 resistors have the same value.
If it's from the non-inverting input why the minus sign when dividing R1 and R2 in the Vin equation? I find it a bit confusing because the minus sign is also been used to calculate the gain of an inverting input.
why dont you apply the formula Vin=(R1/R2)Vout? How do you know that the opam is satturated already? I mean, the relation beteween Vo and Vin according to Vin=(R1/R2)Vout is linear. You make it looks like pulse function and its not. Please explain it to me.
I'm looking for how to design a single pole double throw switch that switches one way above a higher voltage and the other way below a lower voltage. I want it to switch between a capacitor and a shorting wire to control a generator powered by a falling weight. It would be fun to make a weight driven radio or phone charger but a low power load would make the generator spin faster and a high load make it slow if I connected it directly. The plan is to run the load off of some power capacitor, and have the generator charge the capacitor in parallel, but then disconnect and be shorted out when the capacitor reaches a higher voltage, let's say 5.5 volts in the case of phone charging. Then when the phone has siphoned enough from the capacitor that its voltage has dropped to 4.5 or maybe 4.8 volts, disconnect the shorting wire and reconnect the capacitor. My thinking is the generator will slow down on the shorting wire, and then speed up when connected across the capacitor until it is charged to the desired level and switched out of circuit again. I am unsure of how the old Freeplay spring driven radios worked (before they switched to battery storage) but when the radio was at moderate levels, the generator would rev up a bit and then slow down again in pulses, which is the behaviour predicted from the circuit above e.g. charging a capacitor and then shorting the generator (with the capacitor disconnected from it) to slow the release of wind when the radio had enough power. Turning up the volume louder caused the radio to unwind in longer pulses until it was steady and fast, leading me to believe the capacitor was never switched out due to the power demand of the loud radio. If the radio was turned off completely, then it unwound slowly, leading me to believe the capacitor was fully charged and the generator was on the shorting wire. Also holding the winder still caused the radio to fade out like it was on a capacitor of some sort. I couldn't find the exact circuit that was responsible though.
Hello sir and thank you for your very informative videos. I have a question for you: I would like to make a circuit that can give me a rectangular signal between 0V and 5 V. A kind of switch, but with a smaller rise time in the order of 50ns to 100ns. I tried with the Mosfets, but the output siganl to a lot of swings and noises. What you can advise me or have already made a circuit like that. I like to test the filters placed at the retraction of a microcontroller by placing this signal recregular and read the response of the filter. Thank you
Can any one show me ho to calculate upper and lower threshold for Non-Symmetrical Schmitt Trigger with an example . I am not able to get 1.66 and 3.33 volt in my calculation . Thank you
A bit unfair,try doing a video in Russian(or any foreign language to you),then see how many 'uuhhh,s' you do before you attempt a sentence in a foreign language!!
|| means "in parallel with". For example, R1 || R2 is asking for the resistance of two resistors, R1 and R2 connected in parallel. R1 || R2 = (R1 x R2) / (R1 + R2)
![[Live] : ONE 168 วันนี้!! "โจนาธาน vs ซุปเปอร์เล็ก"](http://i.ytimg.com/vi/0jIN65KgJsI/mqdefault.jpg)
THANK YOU VERY MUCH ! Haven't studied some of this stuff since electronics classes in high school...You have great graphics and to the point explanations.
High school????? Lucky I didnt learn this until college
@@Brian-mf3ry we had optional tech center classes available to us in the 1980's. It was way more interesting than some of the other normal electives. It was a 2 year program and since both of the electronics course teachers we also instructors at the the Grand Rapids community college and taught the same curriculum for the electronics technology associates degree they set it up to allow us to be able to test out of the two-year program in college if we completed the tech center 2 year course. Sadly the program and facility are now defunct
I think your really talented you guys who understand electronics to the level where you understand exactly how circuits work.like this.
Awesome Explanation Within 5mins.
As perfect as it could be.
Hi Dejan, your videos are very clear, educative and highly illustrative. I was going to point out the mistake your last formula (because R1 and R2 are clearly in parallel since they both connect to 5V).
But then I noticed nagarjun rao correcting it
highly appreciated
Good catch
I usually see schmitt triggers in the positive feedback inverting configuration. The circuit here is using positive non-inverting configuration. I'm not sure if it will work. Also, I think that using virtual short concept in your equation (Va=0) is not valid because this only exist in negative feedback configurtion.
Thanks a lot! I have a teacher that literally says we should look it all up ourselves so this was very informative. Thanks!
And, that is "teaching"? Wow, he wouldn't be working for me long....
Hahaha me too, do we have the same lecturer? 😅
Thanks a lot. Your videos help a lot for homework assignments, lab reports and lab work. You're beyond awesome.
Happy to hear that!
I understood more in 6 minutes than 1 and a half hour in the lecture hall. Thanks,dude.
3:07
Va is not zero , cause we don't have negative feedback here.
easily to understand it, using a 555 ic (vcc=12v) the trigger is Low threshold (pin2_Vcc/3) High threshold (pin6_2/3Vcc)
My circuit Analysis Lab is literally using your slides....thanks haha
If I'm not mistaken, that last formula you displayed (where Vout = 5V) is wrong. The formula to calculate Va should be Va = [R3 / (R3 + R1 || R2)]*Vref. Since all the resistors are the same value the answer you got is correct, but your approach was not.
Yes you are right
yeah. ohms law.
|| means what in that formula
|| means "in parallel with".
For example, R1 || R2 is asking for the resistance of two resistors, R1 and R2 connected in parallel.
R1 || R2 = (R1 * R2) / (R1 + R2)
From what I learned in college, resistors that are in parallel share both nodes. Why, in the first of the last two examples, are R2 and R3 in parallel?
Your Va formula for non-symmetrical inverted schmmit trigger is incorrect. It should be = [(R3)/((R1||R2) + R3)]*Vref. You just got the right answer because all 3 resistors have the same value.
Better than my professor!
If it's from the non-inverting input why the minus sign when dividing R1 and R2 in the Vin equation? I find it a bit confusing because the minus sign is also been used to calculate the gain of an inverting input.
When I rearrange the equation to calculate Vout the minus disappears.
well explained, understood in one go.thank you
can I use Schmitt Trigger if I have sine wave I/P to get square wave?
Wow, I am impressed so with this video, I am liking and subscribing to your channel! I love channels like this and Organic Chemistry Tutor.
Great explanation for Schmitt Triggers.
why dont you apply the formula Vin=(R1/R2)Vout? How do you know that the opam is satturated already? I mean, the relation beteween Vo and Vin according to Vin=(R1/R2)Vout is linear. You make it looks like pulse function and its not. Please explain it to me.
Can you make an inverting one also
Excellent! Thanks for making this!
Nice explained
I'm looking for how to design a single pole double throw switch that switches one way above a higher voltage and the other way below a lower voltage. I want it to switch between a capacitor and a shorting wire to control a generator powered by a falling weight. It would be fun to make a weight driven radio or phone charger but a low power load would make the generator spin faster and a high load make it slow if I connected it directly.
The plan is to run the load off of some power capacitor, and have the generator charge the capacitor in parallel, but then disconnect and be shorted out when the capacitor reaches a higher voltage, let's say 5.5 volts in the case of phone charging. Then when the phone has siphoned enough from the capacitor that its voltage has dropped to 4.5 or maybe 4.8 volts, disconnect the shorting wire and reconnect the capacitor. My thinking is the generator will slow down on the shorting wire, and then speed up when connected across the capacitor until it is charged to the desired level and switched out of circuit again.
I am unsure of how the old Freeplay spring driven radios worked (before they switched to battery storage) but when the radio was at moderate levels, the generator would rev up a bit and then slow down again in pulses, which is the behaviour predicted from the circuit above e.g. charging a capacitor and then shorting the generator (with the capacitor disconnected from it) to slow the release of wind when the radio had enough power. Turning up the volume louder caused the radio to unwind in longer pulses until it was steady and fast, leading me to believe the capacitor was never switched out due to the power demand of the loud radio. If the radio was turned off completely, then it unwound slowly, leading me to believe the capacitor was fully charged and the generator was on the shorting wire. Also holding the winder still caused the radio to fade out like it was on a capacitor of some sort. I couldn't find the exact circuit that was responsible though.
How would I design a circuit that integrates input current and outputs spikes when the voltage exceeds a threshold?
Very clear and simple explanation. Thanks!
que-
if output of only 1khz is needed between frequency range 400hz-3000hz, which type of circuit is useful.
Excellent video, congratilations..
Very good video!
Great explanation thanks
Question, what values do I set for Vcc and Vee?
Great video, thanks a lot.
Great Video !! Explained really well .
Thanks for share ,very educative 👌
Can you describe Schmitt Trigger with NE555 used?
Hello sir and thank you for your very informative videos.
I have a question for you: I would like to make a circuit that can give me a rectangular signal between 0V and 5 V. A kind of switch, but with a smaller rise time in the order of 50ns to 100ns.
I tried with the Mosfets, but the output siganl to a lot of swings and noises.
What you can advise me or have already made a circuit like that.
I like to test the filters placed at the retraction of a microcontroller by placing this signal recregular and read the response of the filter.
Thank you
were you able to find the answer to this?
hi. should the 2nd equation when Vout =5volts be R3/R1|| R2 + R3?
sorry it should be R3/(R1||R2)+R3 × Vref
very good lecture thanks sir
Useful Information,thanks!
Thanks!
Can any one show me ho to calculate upper and lower threshold for Non-Symmetrical Schmitt Trigger with an example . I am not able to get 1.66 and 3.33 volt in my calculation . Thank you
Amazing
great! thank for your good knowledge!
thank you for all (y)
Thank you 👍
thank you very much sir
Great presentation. May I ask what software you use to produce the graphics in your tutorials?
Did you get answer to your question ? I am also intrested.
Excellent video but just, PLEASE manage your tendancy to add "UHHHH" because once I ear it, it's impossible to EAR-ASE it with ease!
A bit unfair,try doing a video in Russian(or any foreign language to you),then see how many 'uuhhh,s' you do before you attempt a sentence in a foreign language!!
for gain , do you need plu rf/r1 +1? im right
Excellente video!!!
Good stuff. Thanks.
Keep going, nice video
I think that both the formulas for the Non-Symmetrical one are wrong.
I like your accent
thx
came to learn about the Schmitt Trigger I.C., got a lesson about op amps :(
I believe if you apply this on a breadboard using DMM will be more professional
thank you
|| means what? in that formule
|| means "in parallel with".
For example, R1 || R2 is asking for the resistance of two resistors, R1 and R2 connected in parallel.
R1 || R2 = (R1 x R2) / (R1 + R2)
Thanks.
nice, thanks!
Can't pay for conventional circuit simulators? Type androidcircuitsolver on google
makes sense.
thank you, very good explanation!!! and a sub from me!!!
why is V at A 0 in the first one?
HERNIAK the reference voltage is 0, and output will switch when Va is equal to reference voltage that is 0
this explanation is very confusing. seach youtube for schmitt trigger (6) and get a less onfusing explanation....
THANK YOU
nice Defender 90 TD5 btw
Why background music🤦♀️
Hello my name is Gatis Kandis
why Va will be 0?
cause of virtual ground
Nice :)
remember the triangle
If you can say Hysteresis than you can say "how" and "have". It begins with the same letter H. Pls don´t say CHOW and CHAVE plsplspl
this guy sounds like a robot
i like youj
A JA/NEIN gate.
Obviously made from germanium.
You should delete this video for misinformation
This intro kills my ears
Pity the voice sounds like a darlek.
Your pronunciation is dangerous,first correct your prounciation
says the idiot who makes spelling mistakes himself..
Bhai aap totle ho kya 🤔
great explanation thanks.
Thanks!