How to label power consumption

Hallo, I'm a new User of CircuitLab. I find CircuitLab very interesting and easy to use. Some quiestions are comming up using this program. 1.) Is there any way for labeling the power cunsumption of an resistor in a circuit? I've no idea. I know how to label the voltage and flowing currents. 2.) Is it possible to show this directly in the circuitdrawing? 3.) Is there a way to display overload by marking the corresponding part. this would be very usefull. 4.)Unfortunately, I can not find a component such as an optocoupler.

I apologize for my bad English, unfortunately I am not very practiced. Thank you for your help in advance. Best regards Franz-Josef

by fjhstrom
July 01, 2018

This is an area of electronics where gut feel is so much better then blind pedantry. This is because resistors are real life items and can be run at greater than rated power for small periods. Usually resistors can be very small, and it is obvious to the designer where larger ones may be required.

Optocouplers can be of many types.In general there is no easy model, but in specific instances it may be possible to make representative circuits from standard parts,

by mikerogerswsm
July 01, 2018

No Answers

No answers yet. Contribute your answer below!


Your Answer

You must log in or create an account (free!) to answer a question.

Log in Create an account


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.