|
I have built a circuit using a hall effect device and 5V voltage regulator, with a digital voltmeter to measure the change in the electromagnetic field. The digital voltmeter measures from 8-30V. When I have the voltage regulator in the circuit, there is nothing registered on the voltmeter. What could be the cause? Does the voltage regulator decrease the voltage to a level that is unreadable by the voltmeter? |
September 02, 2018 |
|
Read the spec. |
September 02, 2018 |
|
What Hall effect device and what is your circuit? |
September 02, 2018 |
|
by seantsheep September 02, 2018 |
|
Hall effect devices are a well known way of detecting a static magnetic field. A supply is connected across two terminals and the small voltage difference between the other two terminals is approximately proportional to the magnetic field across the device. |
September 02, 2018 |
|
Modern three-pin sensors may have regulator and opamp built-in. In this case the supply goes into two pins and the third pin is the output. |
September 02, 2018 |
You must log in or create an account (free!) to answer 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.
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:
Unacceptable Questions:
Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!
CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.