Questions tagged [circuit-analysis]

Question 1

I just want to know why an RC parallel circuit is placed in a DDR reset cicuit

Question 2

I'm currently doing electronic circuits just to learn and have fun. With this one I was trying to make a group of LED to vary brightness but with a sawtooth signal. Note: I wanted to make it just with ...

Question 3

I am building a timing circuit designed to detect pulse signals and shut off a load (e.g. an LED) if the pulses are sustained, but allow the load to remain ON if the input is a steady DC 12V. Project ...

Question 4

I tried looking around, but I couldn't find any explanation why these collectors are floating. Datasheet: https://www.egr.msu.edu/eceshop/Parts_Inventory/datasheets/lm566.pdf

Question 5

I try to understand that circuit https://raw.githubusercontent.com/sensslen/Cfg.CameraControl.Hardware/refs/heads/main/Cgf.CameraControl.Hardware.svg The left upper part with the BSS138. It seems to ...

Question 6

Here is a circuit I made in LTspice based on an example in the Sedra/Smith book. I want to measure Rout and Rof (as shown in the Example's figure) if possible. How should I do this?

Question 7

This is a Tone audio generator. The 4046 generates a tone and TL074 controls its threshold audio. Please consider the LM393 schematic, its output is 0 or -5V. I want to connect the LM393 to this audio ...

Question 8

The green LED at the output of the steady-state circuit turns off after 52 ms when a button is pressed, and then the red LED turns on. When the button is released, the red LED turns off after 2 ...

Question 9

Why does the passive sign convention even work? I'm trying to understand that why is that when we assume the voltage polarity randomly for a R at the start and then assume a positive current entering ...

Question 10

I tried to solve this question by applying KCL at the first inverting node and then applied it to the 2nd inverting node. The answer I got is \$V_o\$ = 66V, which is not possible, and for Point B = -...

Question 11

I have a problem with .op analysis in LTSpice. Below you can see a part of an audio amplifier I'm tinkering with. For most of the time, I just simply used a voltage source instead of a zener diode. I ...

Question 12

While I was looking at the schematic for the Revolution PI Connect4 open-source industrial controller, I saw this attached reverse supply protection circuit. I don't understand why T101 is connected ...

Question 13

This is an experiment in the Elenco electronics kit and I'm trying to understand it. When no switch is on, current flows out of + (I think using conventional flow), through the 1k resistor which turns ...

Question 14

I am using the following diode configuration to dissipate heat from my resistor. The diode I am using is B260-13-F (datasheet). The resistor is a heater that would be powered using any one of the two ...

Question 15

I’m having trouble understanding voltage dividers. According to the standard formula: $$ V_{out} = V_{in} \cdot \frac{R_2}{R_1 + R_2} $$ If the two resistors, \$R_{1} = R_{2}\$, are equal in value ...

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Questions tagged [circuit-analysis]

DDR reset LPDDR4

Why the diode does not work?

RC Circuit for Timing Module

What do these floating collectors in this LM566 datasheet mean?

How does that one wire type circuit work?

How to find the output resistance of a Transconductance Amplifier in LTspice?

Blank Audio using LM393

Making a multivibrator circuit using LM741 [closed]

Why does the passive sign convention work?

Solve This Op-Amp Question Using KCL At Nodes

LTSpice: Zener diode breaks .op analysis?

What is the actual purpose of this reverse supply protection circuit?

Trying to understand a circuit with NPN and PNP transistors

Stray voltage on NC terminal of OR logic diode setup

Why does a voltage divider work even with extreme resistor values?

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