Electrical Circuit Ground Symbol
An example circuit using ground symbols.
Electrical circuit ground symbol. Resistor ieee resistor reduces the current flow. Electrical circuits may be connected to ground earth for several reasons. It is the potential of perfectly conducting earth. Connected to the chassis of the circuit.
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. Exposed metal parts of electrical equipment are connected to ground so that failures of internal. Used for zero potential reference and electrical shock protection. There may be several signal grounds in a circuit due to the voltage drops in a circuit.
Signal ground it is a reference point from which the signal is measured. Used for zero potential reference and electrical shock protection. From this key it seems that various parts of the above circuit are to be. In this question is the following diagram for a voltage booster intended for small battery powered devices.
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. In electrical engineering ground or earth is the reference point in an electrical circuit from which voltages are measured a common return path for electric current or a direct physical connection to the earth. Ground it is equivalent to theoretical 0v and is used as zero potential reference. That is what you do when you build the circuit.
Resistor iec potentiometer ieee adjustable resistor has 3 terminals. Digital common ground. Connected to the chassis of the circuit. I m also puzzled why the link to earth is shown on gnd rather than on pgnd.