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

What are ABCD Parameters ?ABCD Parameters DefinitionABCD parameters are used to model transmission lines in a two-port network, linking input and output voltages and currents.ABCD parameters (also known as chain or transmission line parameters) are generalized circuit constants used to help model transmission lines. More specifically, ABCD parameters are used in the two port network representation of a transmission line. The circuit of such a two-port network is shown below:ABCD Parameters of a

What is Admittance?Admittance DefinedAdmittance measures how easily current flows through a circuit and is measured in siemens.Impedance RelationAdmittance is the inverse of impedance, demonstrating opposite functionality in allowing current flow.Admittance is also a complex number as impedance which is having a real part, Conductance (G) and imaginary part, Susceptance (B).(it is negative for capacitive susceptance and positive for inductive susceptance)Admittance ComponentsIt includes conducta

What is Electrical Power System?Power System DefinitionAn electric power system is a network designed to efficiently generate, transmit, and distribute electricity to consumers.An electric power system is defined as a network of electrical components used to supply, transfer, and consume electric power. The supply is done through some form of generation (e.g. a power plant), the transfer is done through a transmission (via a transmission line) and distribution system, and the consumption can be

What is LED?LED DefinitionA Light Emitting Diode (LED) is a semiconductor device that emits light when electric current flows through it.Older LED technologies used gallium arsenide phosphide (GaAsP), gallium phosphide (GaP), and aluminum gallium arsenide (AlGaAs).LEDs produce visible light through the electroluminescence effect, occurring when direct current passes through a doped crystal with a PN junction.Doping involves adding elements from columns III and V of the periodic table. When energ

How Dose an LED Work?LED DefinitionAn LED, or Light Emitting Diode, is defined as a semiconductor device that emits light when electrically energized through a process called electroluminescence.How an LED worksLike an ordinary diode, the LED diode works when it is forward biased. In this case, the n-type semiconductor is heavily doped than the p-type forming the p-n junction. When it is forward biased, the potential barrier gets reduced and the electrons and holes combine at the depletion layer

What is Distortion?Distortion definitionDistortion refers to changes in the signal during transmission, processing or storage that are inconsistent with the original signal.Distortion classificationLinear distortion Amplitude distortion: The amplitude ratio of different frequency components in the signal changes. For example, in audio systems, the amplitude of the high-frequency components is attenuated, which can cause the sound to become dull. Phase distortion: The phase relationship of differ

What is Short Circuit Protection?Short circuit protection definitionShort circuit protection is an important safety measure to prevent damage or fire caused by short circuit in the circuit. Short circuit protection is usually achieved through protective devices in the circuit that are able to quickly cut off the current when a short circuit is detected to protect other components and personnel in the circuit.Working principleThe working principle of short-circuit protection is based on the conce

What is PWM?PWM pulse width modulation definitionPWM pulse width modulation (PWM) is a method to digitally encode analog signal levels. By modulating the width of a series of pulses, the desired analog signal is obtained equivalent.Working principleThe basic principle of PWM technology is to use the digital output of the microprocessor to control the analog circuit. A square wave with a fixed frequency is used as the carrier signal, and the average voltage of the output signal is controlled by c

The development direction of charging pileAs an important supporting facility for new energy vehicles, the development direction of charging piles is directly related to the future development of the new energy automobile industry. According to the latest search results, the development direction of charging piles mainly includes the following aspects:High power fast charge technologyIn order to meet the needs of the market, charging pile technology is also constantly developing in the direction

What is a Charging Pile?Definition of charging pileElectric vehicles (EVs) provide charging services to supplement the battery power of electric vehicles.Charging modeAc charging: Suitable for most electric vehicles, the charging power is relatively low, suitable for long-term charging.Dc charging: The charging power is higher, which can charge electric vehicles faster, and is suitable for quick replenishment of electricity during long distance travel.Main purpose classification of charging pile