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

Xenon lamp with short arc

What is a Slip Ring?Slip Ring DefinitionA slip ring is defined as an electromechanical device used to connect a stationary system to a rotating system to transmit power or electrical signals.Working PrincipleSlip rings have two main components: metal rings and brush contacts. The number of rings and brushes depends on the machine’s design and application.Depending on the RPM (rotations per minute), either the brushes are fixed and the rings rotate, or the rings are fixed and the brushes rotate.

What is a Rogowski Coil?Rogowski Coil DefinitionA Rogowski coil is defined as an electrical device that measures alternating current (AC) and high-speed transient or pulsed currents.Rogowski Coil CharacteristicA Rogowski coil is an evenly wounded coil with N number of turn and constant cross-section area A. There is no metal core in a Rogowski coil. The end terminal of the coil is returned through the central axis of the coil to another end. Therefore, both terminals are at the same end of the c

What is a Centrifugal Switch?Centrifugal Switch DefinitionA centrifugal switch is an electrical component that activates based on the centrifugal force generated by a motor’s rotating shaft to control motor start-up.Operational MechanismA single-phase AC engine has a centrifugal switch inside its case, which is attached to the engine shaft. When the engine is off and motionless, the switch is closed.When the engine is switched on, the switch drives electricity to the capacitor and the extra coil

Xenon lamp with long arc

What is a ADC ?Analog to Digital Converter DefinitionAn Analog to Digital Converter (ADC) is a device that changes a continuous analog signal into a discrete digital signal.ADC Process Sampling and Holding Quantizing and EncodingSampling and HoldingIn Sampling and Holding (S/H), the continuous signal is sampled and held steady for a short period. This removes variations in the input signal that could affect conversion accuracy. The minimum sampling rate must be twice the maximum frequency of the

What is a DAC?Overview of Digital-to-Analog ConvertersDigital-to-Analog Converter (DAC), also known as D/A converter, is abbreviated as DAC. It is a device that converts digital quantities into analog ones. DAC is essentially composed of four parts: weighted resistor network, operational amplifier, reference power supply, and analog switch.Working PrincipleThe DAC is mainly composed of digital registers, analog electronic switches, weighted-resistor networks, power amplifiers, and reference volt

The circuit of metal halide lamp

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