lenzrulz

modified 6 years ago

⭐️5V BJT NOR gate⭐️

126

01:23:15

When the top input (input A) is at logic high, the corresponding transistor’s emitter base junction is reverse biased and the base collector junction is forward biased. 

Transistor Q3 (base connected to a 1.6K resistor) gets base current from supply voltage Vcc and goes to saturation. 

As a result of low collector voltage from Q3, transistor Q5 (collector connected to the 130Ω resistor) goes to cut off and on the other hand if another input is low, Q4 (emitter connected to the 1K resistor) is cut off and correspondingly Q5 is cut off and output is connected directly to ground through transistor Q3.  

In a similar way, when both inputs are logic low, the output will be at logic high.

Enjoy...😎

published 6 years ago

qrck13

6 years ago

That's not a NOT gate obviously, but a good attempt at DTL logic. Keep trying and working hard, you would eventually get it right.

lenzrulz

6 years ago

👍

hurz

6 years ago

This is a classical TTL NOR gate while you missed two things. The base resistor of the lower input transistor suppose to be 4kOhm and not 1kOhm. Copy and Paste mistake. Second, the simulation speed is by far to quick and suppose to be at 500ns/s otherwise you get wrong output voltages caused by subsampling. Its not easy to copy and paste a circuit with all tje meta information you can only know with a lot of experience.

lenzrulz

6 years ago

👍

qrck13

6 years ago

@hurz, let the kid play. He will learn eventually

lenzrulz

6 years ago

See, we can all play in the same sandpit without throwing sand in each other’s eyes....😂

hurz

6 years ago

Lenny, we both know you are not here to learn electronics.

Bushmills

6 years ago

He seems to get senile now, forgetting that he has posted all kind of gates in BJT and FET versions hundreds of times already. Stuck in a loop.

kiani

6 years ago

Why isit that lrnzulz insist on posting things he does not understand.!? Only a clinical psychiatric can answer this,,, he needs help,, this is he is crying oit for help.....

lenzrulz

6 years ago

@hurz, And we both know that you are also not here electronics, when was the last time you posted a circuit?

lenzrulz

6 years ago

&Bushmills, speaking from experiencee? I guess it makes sense given your current stagnated predicament, once a loser always a loser huh?

lenzrulz

6 years ago

@kiani, I have responded in kind (on your circuits) and reported your comment to the admin’s, have a nice day my friend...😎

lenzrulz

6 years ago

Now let’s play peacefully with each other and stop throwing sand at each other‘s faces...😂

hurz

6 years ago

Lenny are you nervous. I have published thousand of different working circuits with description and its math background. Cuz of some cyberterror users like you who spams on my technical publication i desided to help users with comments only. Correction for you: we both know, im here for electronics.

lenzrulz

6 years ago

Not true, it was you that started posting your nonsensical bullying comments on all of my circuits while leaving every other circuit published by other users alone. So I responded in kind and you didn’t like it so you marked your circuits as “private” and then continued your stupidity. You’re a cyberbully, it’s you that’s run out of ideas given EC’s limitations and now you’re trying to force users to use an app (that they paid for) in ways which please you. Leave my circuits alone and focus on users who actually want your help and peace will return to the EC community!

Bushmills

6 years ago

"Circuits" he calls his crap. What a lunatic.

lenzrulz

6 years ago

Whatever, now disappear onto the background where you belong!

Tedski

6 years ago

Playschool is out!!!!

giomix

6 years ago

Lenz, why you don't ask to your friend tedski when he published his last circuit and instead you ask this to me, hurz and others etc? Try to become honest, if you can.

lenzrulz

6 years ago

@Tedski isn’t a stalking troublemaker. Why haven’t you published any circuits lately?

giomix

6 years ago

Tedsky is stalking troublemaker to my comments to your circuit, so no differences. The only difference it's he is to your side. Honesty, forgotten?

lenzrulz

6 years ago

If you don’t post your comments on my circuits then @Tedski can’t stalk your comments, honestly speaking of course!

giomix

6 years ago

If you do not publish copypasted and wrong circuits then I can't comments your circuits and Tedski can't stalk my comments. More honestly speaking, all born from a your wrong dishonest behavior.

lenzrulz

6 years ago

That’s your opinion, honestly speaking. I will continue publishing circuits and I will continue offering critiques to your circuits because that’s what you desire.

giomix

6 years ago

When in a talking you are in a corner then write your last saving anchor, "that's your opinion". No opinion, is just the objective true recognized by all, like the earth is not plain. Or do you think that to believe earth plain or not is an opinion? Another way to be dishonest.

lenzrulz

6 years ago

I understand your problem, you’re confusing objectivity with subjectivity. That’s a common mistake a lot of people make especially if their arguments are pathetically weak.

lenzrulz

6 years ago

BTW, I would advise you to look up the definition of the word “opinion” to avoid embarrassing yourself any further.

giomix

6 years ago

Fortunately exist Lenz that teach us how the world is made, please save us from the common mistake of a lot of people!. You cannot understand my problem and any other problem just because anybody has his mind limits and the yours are too much big. BTW even a people like you can learn the word "honesty" and can try to apply this concept in their life.

lenzrulz

6 years ago

I honestly do...😂

giomix

6 years ago

Nope

crake

6 years ago

So little time, so much bitching to do!

wyoelk

6 years ago

Lenzrulz, still haven't found professional psychiatric help or have found it and choose to ignore it or just love all this attention and conflict you create. Probably the latter choice.

lenzrulz

6 years ago

@wyoelk, you’re not a qualified clinical psychologist as evidenced your armchair rhetoric. “When you resort to name calling, you’ve lost the argument. When you resort to diagnosing, they’ve lost credibility. Is it any wonder why non-mental health professionals are diagnosing people out of anger?” https://psychcentral.com/blog/the-ethics-of-armchair-diagnosis/

wyoelk

6 years ago

Noticed that YOU literally and publicly call me the name of a"non qualified clinical psychologist". Which means YOU have literally and publicly resorted to "diagnosing" me. Which means YOU have literally and publicly "lost credibility". Which means we "wonder why" YOU are angry with me!

lenzrulz

6 years ago

I’ve already answered your copy/paste comments: http://everycircuit.com/circuit/4648491553652736

lenzrulz

6 years ago

More @Bushmills use of misunderstood words and lies, too bad he can’t stop me from defending myself against troublemaking cyber bullies...😡

wyoelk

6 years ago

I too will copy and paste. Lenzrulz, again you resort to diagnosing me as having an alliance with individuals I have never met or profess to align myself. You consistently fail to have any factual basis for such diagnosis of me or justification of calling me names or categorizing me. You therefore have zero credibility with anyone, including yourself. You aren't defending any concrete principles or credible theories of either electronic, political or emotional in nature. If you aren't ashamed or embarrassed by your contentious behavior you either have no mirror or ability to self-examine. So sad you are so lost and confused with yourself.

lenzrulz

6 years ago

I diagnosed you as having an alliance with individuals you have never met or profess to align yourself with? That’s not a diagnosis, that’s an assertion or an opinion. So let’s straighten out what you’re trying to say because your storyline is extremely ambiguous!

wyoelk

6 years ago

So I assert my opinion that you need a serious psychologist to help you reduce your narcissistic train of thought.

lenzrulz

6 years ago

And I reject your opinion, have a nice day, bye bye...👋

wyoelk

6 years ago

I knew you couldn't maintain a conversation.___ Thanks for surrendering.___Lenzrulz, are you incapable of responding or conversing with others at any level? ___ You probably are a decent fellow who unfortunately has allowed narcissism to overtake his life.

kiani

6 years ago

Tedski is surly lenzulz granny.

lenzrulz

6 years ago

Bye bye, have a great day...😎

wyoelk

6 years ago

Lenzrulz, are you incapable of responding or conversing with others at any level? I knew you couldn't maintain a conversation. Thanks for surrendering with your traditional "bye bye" you use when you won't and can't answer questions or comments.

giomix

6 years ago

Who visit this post will not have any doubt, but only the certainty that you are 100% pure idiot 😅

lenzrulz

6 years ago

Well said...👍

lenzrulz

6 years ago

@Bushmills repeatedly posts fallacious untenable narratives on my circuits accusing me of “spamming”, oh the hypocritical irony. Such pettiness speaks volumes about his assumption that the EC community are so stupid and gullible that they would actually believe his lying narratives!. Report such behaviour to the admins for their perusal. PLEASE NOTE: ** IF @Bushmills FALSE NARRATIVE APPEARS BELOW THIS POST then he has DELETED his PREVIOUS POST and REPOSTED IT AGAIN **

lenzrulz

6 years ago

Narrative reposted

lenzrulz

6 years ago

Narrative reposted

lenzrulz

6 years ago

Narrative reposted

lenzrulz

6 years ago

Narrative reposted

lenzrulz

6 years ago

Narrative reposted

lenzrulz

6 years ago

Narrative reposted

lenzrulz

6 years ago

Narrative reposted

lenzrulz

6 years ago

Narrative reposted

lenzrulz

6 years ago

@Bushmills, any atmospheric toxicity comes from your keyboard as evidenced by your REPOSTED LYING NARRATIVES posted BELOW this comment! *BELOW* - Preposition Beneath, under, lower than, less than, inferior to, subordinate to, subject to, controlled by, under the heel of. That’s right, your lying narratives BELOW - never preceding my comments! Unfortunately, not even your cowardly script usage can help you!

Bushmills

6 years ago

Bye bye...👋

digital_electronics

5 years ago

Good riddance...😡

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