Circuit Stories

I created this list of links regarding the basic property of capacitors to shift potential changes to help answer the question Why does a changing voltage appear to pass through a capacitor?  asked today in EE SE. Electrical Engineering StackExchange What is the point of this capacitor in this op-amp circuit? What is a decoupling capacitor and how do I know if I need one? Coupling capacitor not blocking DC offset What does a capacitor do? How can DC charge a capacitor? What is the role of the capacitor in clamper circuit? Why does a capacitor connected to AC and high impedance act as wire? What is physically happening when there is a square wave input on the left plate of a capacitor and open circuit on right plate of a capacitor? Roles of the coupling and bypass capacitors in a CE transistor AC coupling of a transistor Decoupling capacitors in a bjt amplifier, polarity ResearchGate Does the current flow through a capacitor, and if so, why? What do coupling capacitors really do in...

At the beginning of the year, I realized that I had been a part of EE SE for 11 years. I decided that this was a good opportunity to take stock of what I had contributed to this platform. My contributions I can categorize them into the following groups: Structured answers I take my answers much more seriously than is customary on this Q&A site. They are more than just simple answers; they are more like tutorials. To that end, I structure them into hierarchically organized sections like these: Introduction:  Following this idea, I usually start my answers by justifying the need for a "circuit philosophy" to understand circuits, not just specific explanations. This appeal of mine is addressed not only to OPs, who at this stage are more interested in the specific answer, but also to my colleagues, whom I am trying to introduce to this idea. Basic idea:  To understand a circuit, specific explanations alone are not enough; we need to understand the basic idea on which the circ...

I came up with the idea of using meters with identical internal resistance to represent resistors about a year ago. I began implementing this method to simplify circuit diagrams and decided to share it on StackExchange EE as a dialogue with  Gemini AI . Unfortunately, my question and answer were met with negative feedback and were ultimately deleted by the moderators. As a result, I have chosen to publish these materials on my blog. My question The problem Early on, when I started working with CircuitLab , I noticed that reading voltages and currents in schematics using virtual meters made them look cluttered. Then I noticed that CircuitLab allows you to conveniently set the internal resistance of a meter within very wide limits. Thus, an "ideal" ammeter with zero internal resistance can be transformed into an imperfect ammeter with high resistance, and an "ideal" voltmeter with infinite internal resistance into an imperfect voltmeter with small resistance. This, ...