Switches is a mechanical tool used in electronics to open or close a circuit. Many of switches requires mechanical forces to operates them. There are 3 types of switches that is
- (i) Push Switch
- (ii) Toggle Switch
- (iii) Slide Switch
A switch that is switched 'on' / 'closed' allows current to passed thru meanwhile a switch that is switched 'off' / 'opened' stops current from passing thru it.
- Opened Switch, I ≠ 0 . Circuit is closed
- Closed Switch, I = 0 . Circuit is opened
Types of SwitchEdit
There are 4 main types of switches that are shown in table below: As you noticed, there are 2 re-occuring termsn namely: Pole and Throw.
A Pole simply means how many circuits the switch controls. Single Pole controls one circuit with one switch, Double Pole controls two separate circuits with one switch.
A Throw simply refers to how many ON positions the switch has. Single Throw have one ON position, Double Throw have two ON position