Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is a Ceramic Capacitor?Ceramic capacitor DefinitionA ceramic capacitor is a widely used electronic component that uses a ceramic dielectric to store charge.Basic structure of ceramic capacitorMLCC is made of multiple ceramic layers separated by metal electrodes and has excellent high frequency performance.Ceramic capacitor advantages Various sizes The price is low. Light weight Withstand high pressure Reliable performance Can be used for hybrid integrated circuitsCeramic capacitor disadvant

What is Electrolytic Capacitor?Capacitor definitionCapacitors are components that store electricity and electrical energy. One conductor is surrounded by another conductor, or the electric field lines emitted by one conductor all terminate in the conduction system of the other conductor.The basic structure of a capacitorWorking principle of capacitorElectrical energy is stored by storing charge on the electrode, usually in conjunction with an inductor to form an LC oscillating circuit. The worki

What is Conductance?Conductivity definitionConductivity is defined as the ability of a substance to allow an electric current to pass through, in Siemens, with the symbol "S".The relationship between Conductance and ResistanceReciprocal to each other, Resistance is the ability of the reaction to hinder the passage of current, electrical conductivity is the reaction of the material to allow the passage of current, the relevant formula is:G=1/RThe relation equation of Ohm's conductivity lawG=I/UCo

What is Magnetic Resistance?Magnetoresistance definitionMagnetoresistance is the opposite of magnetic flux in the magnetic circuit, and its function is similar to resistance in a circuit.Magnetoresistive unit :AT/WbMagnetoresistance formulaThe calculation method of magnetoresistance is to divide the length of the magnetic circuit by the product of the free space permeability, the relative permeability of the material and the cross-sectional area of the magnetic circuit, namely :Influencing facto

What is Electrical Capacitor?Capacitor definitionCapacitor is the ability of capacitor to store charge per unit voltage, which is mainly used in power supply filtering, signal filtering, signal coupling, resonance, filtering, compensation, charge and discharge, energy storage, DC isolation and other circuits. The unit of capacitor is farad, labeled F, and the symbol of capacitor is C.Computational formula Equation of definition :C=Q/U Capacitor potential energy calculation formula :E=C*（U^2）/2=Q

What is Electrical Resistance?Resistance definitionThe obstruction of the conductor to the current is called the resistance of the conductor, and the resistance is also a physical quantity that describes the conductivity of the conductor.Factors that affect resistance Length of material The cross-sectional area of the material Properties of materials Environment temperatureThe basic formula of resistance The relationship between resistance, voltage and current (Ohm's Law) The relationship betwee

What is a circuit breaker?Circuit breaker definitionCircuit breaker is a switch device composed of contact system, arc extinguishing system, operating mechanism, release device, housing, etc, which can close, carry and break the current under normal and abnormal conditions to protect the circuit and equipment from overload, short circuit and other faults.Basic structure Contact system Arc extinguishing system Operating mechanism Release device ShellWorking principleWhen the short circuit, the ma

Voltage definition Voltage is a physical quantity that measures the energy difference generated by the unit charge in the electrostatic field due to the different potential, voltage is the reason for the directional movement of free charges in the circuit to form the current, the international system of units of voltage is volts (V, referred to as volts).Voltage direction From high potential to low potential.Voltage calculation The charge moves from point A to point B in the electric field, a

What is electric current?Current definitionIn electromagnetism, the amount of electricity passing through any cross section of the conductor in unit time is called the current intensity, referred to as current, the current symbol is I, the unit is amperes, referred to as "ampere".The cause of current formationA current is formed when the free charge in a conductor moves in a regular direction under the action of an electric field force.Direction of currentThe direction of positive charge directi

Aspace chargeis defined as a region of space where electric charges accumulate, either in free space or in a dielectric material. The electric charges can be either positive or negative, and they can be either mobile or immobile. The space charge can affect the electric field, the electric potential, and the current flow in the region.Examples of Space ChargeSpace charge can occur in various situations, such as: Semiconductor junctions: When a p-type semiconductor (which has excess holes) is bro