Overview of the electrical basics of electric vehicle charging

China [CN]

Basics of DC and AC circuits: :

Basic concepts: Definition of charge: Elementary particles with positive and negative charges, called electric charges (shown below). Positively charged particles are called positive charges (denoted by the symbol "+"), and negatively charged particles are called negative charges (denoted by the symbol "-"). It is also a property of certain elementary particles, such as electrons and protons, that similar charges repel each other and dissimilar charges attract each other.

Among them, the meaning and characteristics of AC and DC:

Definition of direct current: direct current is referred to as DC, also known as "constant current", constant current is a kind of direct current, is the size and direction of the same direct current. The magnitude of the current (high voltage) and the positive and negative electrodes do not change with time (relative range).

The definition of alternating current: Alternating current is referred to as AC, alternating current is also called "alternating current", referred to as "AC". Generally refers to the size and direction of the periodic change of voltage or current at any time. Its most basic form is sinusoidal current.

Of course, AC power is widely used in the transmission of electricity, because AC power transmission is more efficient than DC power transmission under previous technical conditions. The easy rise and fall of AC voltage is just suitable for high-voltage transmission. The use of a simple booster transformer can increase the alternating current to several thousand to several hundred thousand volts, so that the power loss on the wire is minimal. 

More information about dc and ac electrical basis for details, please visit or search: Basics of DC and AC circuits: :

Basic concepts: Definition of charge: Elementary particles with positive and negative charges, called electric charges (shown below). Positively charged particles are called positive charges (denoted by the symbol "+"), and negatively charged particles are called negative charges (denoted by the symbol "-"). It is also a property of certain elementary particles, such as electrons and protons, that similar charges repel each other and dissimilar charges attract each other.

Among them, the meaning and characteristics of AC and DC:

Definition of direct current: direct current is referred to as DC, also known as "constant current", constant current is a kind of direct current, is the size and direction of the same direct current. The magnitude of the current (high voltage) and the positive and negative electrodes do not change with time (relative range).

The definition of alternating current: Alternating current is referred to as AC, alternating current is also called "alternating current", referred to as "AC". Generally refers to the size and direction of the periodic change of voltage or current at any time. Its most basic form is sinusoidal current.

Of course, AC power is widely used in the transmission of electricity, because AC power transmission is more efficient than DC power transmission under previous technical conditions. The easy rise and fall of AC voltage is just suitable for high-voltage transmission. The use of a simple booster transformer can increase the alternating current to several thousand to several hundred thousand volts, so that the power loss on the wire is minimal. 

More information about dc and ac electrical basis for details, please visit or search: https://www.omgevcable.com