Binary in Electronic Circuits
- The two logic values can be represented as voltage levels below and above a predefined level known as threshold
- In a
positive logic system
, voltage level lowers than the threshold represent logic 0- Below threshold = 0 (false, no, etc)
- Above threshold = 1 (true, yes, etc)
- A
negative logic system
is the opposite- Below threshold = 1 (true, yes, etc)
- Above threshold = 0 (false, no, etc)
Effects of applying logic 0
- Logic 0 opens a switch and logic 1 closes a switch
- Below is a complete switch controlled by the values of input x
Switch Circuits implementation
How is such a switch implemented in electronic circuits
- Transistors are used as switches