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

What is a Sine Wave Inverter?Sine wave inverter definitionA sine wave inverter is an electronic device capable of converting direct current into high quality sine wave alternating current. Compared to square wave inverters or modified sine wave inverters, sine wave inverters output AC waveform closer to the ideal sine wave, so they can provide a more stable and efficient power supply for various types of loadsThe operating principle of the chord wave inverter is based on complex power electronic

What is a Square Wave Inverter?Square wave inverter definitionSquare wave inverter is an electronic device that converts direct current into alternating current, and its output alternating current waveform is in the form of square wave.Working principleThe working principle of the square wave inverter is based on simple switching technology. It uses electronic switches (such as relays or transistors) to periodically turn on and off DC power, resulting in alternating currents. Since the waveform

What is AC Charging Pile?Ac charging pile definitionAc charging pile is a facility used to provide AC charging for electric vehicles. Unlike DC charging piles, AC charging piles convert alternating current from the grid to direct current through on-board chargers, which then charge the batteries of electric vehicles.Ac charging pile working principle Ac input: Receives AC power from the grid. Output: The AC is output to the charging interface of the electric vehicle. In-car charger: The in-car c

What is an Inverter?Inverter definitionAn Inverter (Inverter) is an electronic device that converts direct current (DC) to alternating current (AC).Basic principle of inverterThe basic principle of the inverter is to use electronic switching devices (such as IGBT, MOSFET, etc.) to chop the direct current into a series of pulse voltages, and then smooth these pulse voltages into alternating current through a filter.Working processDc input: The inverter receives input from DC power sources such as

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

Power electronic converters will serve as the fundamental components of modern power systems. However, they may suffer from poorer reliability if not properly designed, consequently affecting the overall performance of power systems. Accordingly, the converter reliability should be taken into account in design and planning of Power Electronic-based Power Systems (PEPSs). Optimal decision-making in planning of PEPSs requires precise reliability modeling in converters from component up to syste

This article aims to incorporate the reliability model of power electronic converters into power system reliability analysis. The converter reliability has widely been explored in device- and converter-levels according to physics of failure analysis. However, optimal decision-making for design, planning, operation, and maintenance of power electronic converters require system-level reliability modeling of power electronic-based power systems. Therefore, this article proposes a procedure to eva

This paper proposes and analyzes a two-stage dc-dc isolated converter for electric vehicle charging applications, where high efficiency over a wide range of battery voltages is required. The proposed conversion circuit comprises a first two-output isolation stage with CLLC resonant structure and a second two-input buck regulator. The transformer of the first stage is designed such that its two output voltages correspond, ideally, to the minimum and maximum expected voltage to be supplied to th

The increasing demand for high performance and energy efficiency in Artificial Neural Networks (ANNs) accelerators has driven a wide range of application-specific integrated circuits (ASICs). Besides, the rapid deployment of low-power IoT devices requires highly efficient computing, which as a result urges the need to explore low-power hardware implementations in different domains. This paper proposes a spatially unrolled time-domain accelerator that uses an ultra-low-power digital-to-time conve