Now viewing questions 1-25 of 1222.
custom components asked by aliasoink
1 answer · 0 comments
17 hours, 18 minutes ago
Getting weird results when measuring an LED asked by SuperNoob
0 answers · 2 comments
20 hours, 59 minutes ago
What is the best battery for a vape? asked by nickvi
0 answers · 1 comment
1 day, 2 hours ago
please i really need help asked by mothmanup
0 answers · 0 comments
2 days, 11 hours ago
Relays on a chip asked by Davidwalsh
1 answer · 1 comment
5 days, 23 hours ago
Are 510 batteries legal? asked by nickvi
0 answers · 0 comments
April 09, 2024
Constant Current Electronic Load asked by Xed
3 answers · 0 comments
April 09, 2024
photocoupler asked by boolean99
1 answer · 0 comments
April 08, 2024
Create your own diagram of 4 bulbs blinking using 4 LED’s, 4 200 ohms resistors, and 74LS90 decade and binary counters that is connected to 555 IC timer asked by zgdelima015
1 answer · 0 comments
April 04, 2024
3 phase power supply asked by JF_Somerville
1 answer · 0 comments
March 30, 2024
Need to find a component asked by I812
3 answers · 0 comments
March 23, 2024
ready-made electronic schematics for learning asked by BrankaSplit
0 answers · 1 comment
March 23, 2024
My Depletion Mode mosfet displays as enhancement mode asked by murfett-au
1 answer · 0 comments
March 14, 2024
level shifter 3.3V -> 12V asked by lyy123
0 answers · 3 comments
March 07, 2024
Sine wave is 9V above expecited asked by maly53
0 answers · 2 comments
March 06, 2024
Constant current source asked by Sudharsan_Siddareddy_369
0 answers · 3 comments
March 03, 2024
Simulate a momentary push button? asked by JohnKoz
1 answer · 4 comments
March 01, 2024
Design a circuit diagram for Constant Current Source (800ua) With Variable Frequency asked by Sudharsan_Siddareddy_369
0 answers · 1 comment
February 28, 2024
Multi layered questions about how to make a UPS compatible with Home Assistant asked by DarthMonkey
0 answers · 0 comments
February 26, 2024
"beat" in a RC filter circuit asked by thomas_R27
1 answer · 2 comments
February 23, 2024
LED Panel Light Circuit asked by SteveChemist
0 answers · 7 comments
February 20, 2024
Custom device parameters asked by gwinn
0 answers · 0 comments
February 20, 2024
audio amplifier dc offset right channel is -1.8V and one power transistor is hot. asked by gwinn
0 answers · 1 comment
February 19, 2024
LED Power Indicators asked by Subclub
0 answers · 0 comments
February 12, 2024
What does "driving directions" mean? asked by ryanrobbie
0 answers · 0 comments
February 05, 2024
Go Ad-Free. Activate your CircuitLab membership. No more ads. Save unlimited circuits. Run unlimited simulations.

Search Questions & Answers


Ask a Question

Anyone can ask a question.

Did you already search (see above) to see if a similar question has already been answered? If you can't find the answer, you may ask a question.


About This Site

CircuitLab's Q&A site is a FREE questions and answers forum for electronics and electrical engineering students, hobbyists, and professionals.

We encourage you to use our built-in schematic & simulation software to add more detail to your questions and answers.

Acceptable Questions:

  • Concept or theory questions
  • Practical engineering questions
  • “Homework” questions
  • Software/hardware intersection
  • Best practices
  • Design choices & component selection
  • Troubleshooting

Unacceptable Questions:

  • Non-English language content
  • Non-question discussion
  • Non-electronics questions
  • Vendor-specific topics
  • Pure software questions
  • CircuitLab software support

Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!

About CircuitLab

CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.