X
Advertisement

1,041 questions

1,221 answers

205 comments

779 users

How does a AC & DC LED indicator work & what is their circuit design

551 views
0 votes
How does a AC & DC LED indicator work & what is their circuit design

How does a LED indicator works. What is circuit design with different voltages i.e. 24VDC, 110VDC, 110VAC, 230VAC

Is capacitor & resistor are used in all type of voltages?
asked Jun 11 by abhishek7062rediffmail-com (120 points)

1 Answer

0 votes

Just make it.  Get a ~2K resistor, a bi color 2 pin led.  Put the resistor in series with one of the led pins.  The other end of the resistor and the second led pin become your test probes.  Connect it one way it will light up in color A, reverse the polarity it will light up in color B and if it is AC it will light up in color C!  Colors A, B, C depending on the two colors of the led you get.  Total cost well under a buck.
answered Jul 14 by gilshultzhome-com (17,730 points)

Related questions

  • 0 votes
  • 1 answer
  • 190 views
asked Mar 2, 2016 by sana-gurinyahoo-com (120 points)
  • 0 votes
  • 1 answer
  • 1.2K views
  • 0 votes
answered Dec 27, 2012 by admin (6,160 points)

1,041 questions

1,221 answers

205 comments

779 users

Latest Article Comments

Audio Compression Amplifier...
"Hi Keith, An Excellent AGC/ Compression circuit, you have done. Is there a way to calibrate"
Home IoT - Voice Controlled Lab Lights with Amazon Alexa and...
"I could could see this being used in a home theater. Or even better, I could see this being used"
Battery Backup...
"any way you can help with a schematic"
Hacking a Camera Shutter with Infineon TLE94112LE and Arduino - Part...
"Hey Adam! Me too. I always draw by hand many of my first schematic design. It is easier and faster"
36V Battery Level...
"Hi. Can I add a 12 volt relay for alarm on this 24 v batt level indicatator Circuit.any"
Hacking a Camera Shutter with Infineon TLE94112LE and Arduino - Part...
"I really love the hand drawn artwork. I use things like this a lot to help me gather my"
Visualizing Data with...
"@Adam: Let's going on... Processing Overview - https://processing.org/overview/ Artificial"
Talk Over...
"can you tell us about what that components code are ? i'm new at this so i don't know some of"
Visualizing Data with...
"I was not aware of the Processing pakage for plotting. I will have to go and take a look at"
Magnetic Field Sensor...
"Hi I have a practical use for this and was hoping you would be able to supply a schematic"
electroschematics group on facebook
...
  Search 4 million + Products
Browse Products