Symbol Of Ground In Electronics

For example you may think that your car has a ground.

Symbol of ground in electronics. The ground symbol keeps appearing at different points in a circuit and i could not understand why a particular place was chosen for grounding. Electrical symbols or electronic circuits are virtually represented by circuit diagrams. In this question is the following diagram for a voltage booster intended for small battery powered devices. Used for zero potential reference and electrical shock protection.

The tps61200 spec says gnd is control logic ground and pgnd is power ground but this isn t reflected in the symbols chosen in the diagram. From this key it seems that various parts of the above circuit are to be. Electrical circuits may be connected to ground earth for several reasons. I m also puzzled why the link to earth is shown on gnd rather than on pgnd.

What is ground grounding something simply means connecting it to ground. Electrical ground symbols of circuit diagram earth ground chassis ground digital ground. There are some standard symbols to represent the components in a circuits. For instance the earth ground symbol is also used as a common ground symbol or a 0v reference.

Even many engineering texts seem to completely ignore the subject and fail to give any practical explanation or meaning to the term ground. Connected to the chassis of the circuit. Here are the precise iec definitions for each symbol. It is the potential of perfectly conducting earth.

Digital common ground. The actual symbols used to indicate ground terminals are found in iec 60417 graphical symbols for use on equipment figure 1. Also many non ac line devices and systems have no possibility of connection to earth ground such as an airplane or car even if they are in metal enclosures. To identify an earth ground terminal in cases where neither the symbol 5018 nor 5019 is explicitly stated.

To make matters worse electronics enthusiasts often confuse and incorrectly interchange the symbols for the different types of electrical grounding. Exposed metal parts of electrical equipment are connected to ground so that failures of internal. The symbol for chassis ground since many of today s products have non metallic cases or enclosures the term chassis ground should not be assumed to connect to earth ground for safety. Ground it is equivalent to theoretical 0v and is used as zero potential reference.

The earth ground symbol is unfortunately used in many applications in electronics and electrical engineering often meaning different things to different people so it may be a bit confusing to some beginners.