Tagged Questions
0
votes
3answers
85 views
Close a circuit at specific input frequency
I have several very simple circuits comprising of a battery connected to a LED. Additionally I have an input signal at some frequency, which I need to use in order to control these circuits. What I ...
3
votes
3answers
747 views
Is Frequency for dc is zero?
We know the frequency of a direct current is zero. The reason is that there is no repetitive pattern.
But i was stumbled when i notice, why cant that straight line be cut into smaller pieces, and ...
1
vote
3answers
427 views
Counting DC power pulses per minute
I need to implement a frequency counter (pulses per minute) of a DC circuit that goes up to 20 volts. A little background, I am building a linear power supply 0-20 volts, 0-3 amps for my relative who ...
1
vote
1answer
200 views
At DC frequency, how long can wire be until signal attenuates almost completely?
Just got curious about this last night when I was wiring a couple of LEDs on my brother's long board.
For a simple DC circuit (Battery, resistor, LED), how long can I stretch the wire until the power ...
3
votes
5answers
621 views
How to deal with a DC adapter with irregular voltage output?
Background information:
I tried hard to get a Schmitt-trigger working, but it kept failing. By accident I figured out, that my AC-to-DC adapter produces a very irregular voltage output (I could hear ...
