Posts

Negative feedback (list of links)

I created this list of links regarding the philosophy of negative feedback op-amp circuits to help my answer to the question  How does an op-amp voltage follower maintain its output voltage when a load is connected?  asked a few days ago in Electrical Engineering Stack Exchange. Stack Exchange How does this op-amp config work as a voltage follower? Non-inverting op-amp Unity Gain Amplifier Purpose How does a unity gain buffer work? Understanding Op-amp Negative Feedback Understanding Op-amp Negative Feedback Usage of input voltages in ideal op-amp What's the gain of this op amp? Op-amp voltage follower basic understanding How does a "regulating" source follower work? Can't understand concept "stiff source" Emitter follower None-inverting op-amp must zero output, why not? What is the purpose of including (or excluding) the output resistor in the feedback loop of an op-amp buffer? What is the purpose of including (or excluding) the output resistor in the feedb...

Demystifying the transistor switch: A conversation with Gemini

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This circuit story is an AI-assisted version of my answer to the question  Why does not this forward biased NPN transistor act as a closed switch?  on Electrical Engineering Stack Exchange (EE SE). I have had similar conversations with  Gemini AI  before (see Talking with Gemini and  How do we collaborate with AI in answering SE EE questions ), but I used to present my answer first and then discuss it. This time I decided to run an experiment: instead of providing background information upfront, I reversed the process and started creating the circuit story right away. We created the story together first, and then I posted a condensed version as an answer on Stack Exchange. This exceeded my expectations; Gemini was an equal interlocutor and did great! Here is our story, in which what I wrote is in regular font, Gemini's is in italics, and what we created together is in gray. This is not a perfectly written and well-structured text, but rather a "transcript" of o...

Разговор с Джемини за транзисторния ключ

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Тази схемна история е създадена с участието на изкуствения интелект Gemini    и представлява AI версия на моя отговор на въпроса Why does not this forward biased NPN transistor act as a closed switch? в Electrical Engineering Stack Exchange (EE SE). Преди съм имал подобни разговори с Gemini (вижте Разговори с Джемини и How do we collaborate with AI in answering SE EE questions? ), но обикновено първо представях отговора си и след това го обсъждахме. ​Този път реших да направя експеримент: вместо да предоставям предварителна информация, обърнах процеса и започнах да създавам схемната история веднага. Първо създадохме историята заедно, а след това публикувах съкратена версия като отговор в Stack Exchange. Това надмина очакванията ми — Джемини беше равностоен събеседник и се справи страхотно! Ето я и нашата история, в която написаното от мен е с нормален шрифт, а на Джемини в курсив. Това не е перфектно написан и добре подреден текст, а по-скоро една “стенограма” на ...