Results 11 to 20 of about 231,137 (293)

Radio Frequency Energy Harvesting Technologies: A Comprehensive Review on Designing, Methodologies, and Potential Applications

open access: yesSensors, 2022
Radio frequency energy harvesting (RF-EH) is a potential technology via the generation of electromagnetic waves. This advanced technology offers the supply of wireless power that is applicable for battery-free devices, which makes it a prospective ...
Husam Hamid Ibrahim   +6 more
doaj   +1 more source

AC-DC DAB Converter with Power Factor Correction

open access: yesEnergies, 2022
AC-DC conversion is required in many applications, and in some of them isolation is strictly required, certainly while maintaining characteristics such as a high power factor and low input current THD. In this paper, an AC-DC converter, comprising a full-
Pablo Guzmán   +5 more
doaj   +1 more source

New column configurations for pressure swing batch distillation I. Feasibility Studies [PDF]

open access: yes, 2007
The feasibility of the pressure swing distillation in different batch column configurations is investigated. The method is based on the assumption of maximal separation. Besides studying the well known batch configurations (rectifier, stripper, middle
Modla, Gábor
core   +1 more source

Multi-Phase Interleaved AC–DC Step-Down Converter with Power Factor Improvement

open access: yesMicromachines, 2023
This paper presents the converter design of a single-phase non-isolated step-down controlled rectifier for power factor improvement and output voltage regulation.
Jose M. Sosa-Zuniga   +3 more
doaj   +1 more source

Solidifying Power Electronics [Historical] [PDF]

open access: yes, 2018
More than one century ago, in 1902, American engineer Peter Cooper Hewitt (1861\u20131921) derived the mercury arc-rectifier, enclosed in a glass bulb, from his mercury-vapor lamp of the previous year.
Guarnieri, Massimo
core   +1 more source

Desain Antena Hexagonal Patch Array Berbasis Sistem Transfer Daya Wireless pada Frekuensi 2,4 GHz

open access: yesJurnal Elektronika dan Telekomunikasi, 2016
Pada penelitian ini telah didesain antena hexagonal patch array yang dapat digunakan sebagai perangkat catu daya wireless. Antena hexagonal patch array ini didesain untuk menangkap gelombang radio (RF) pada frekuensi 2,4 GHz yang dapat diaplikasikan ...
Herma Nugroho R. A. K.   +2 more
doaj   +1 more source

A Compact Circular Rectenna for RF-Energy Harvesting at ISM Band

open access: yesMicromachines, 2023
With low-power gadgets proliferating, the development of a small, effective rectenna is crucial for wirelessly energizing devices. A simple circular patch with a partial ground plane for RF-energy harvesting at ISM (2.45 GHz) band is proposed in this ...
Lalbabu Prashad   +2 more
doaj   +1 more source

A Sliding Surface-Regulated Current-Mode Pulse-Width Modulation Controller for a Digital Signal Processor-Based Single Ended Primary Inductor Converter-Type Power Factor Correction Rectifier

open access: yesEnergies, 2017
To efficiently supply wide-range DC voltage from a pulse-width modulation (PWM) rectifier, this paper presents a single-phase, full-wave, diode-bridge, single-ended primary-inductor converter-type (SEPIC-type) power-factor-correction (PFC) rectifier in ...
Hsin-Jang Shieh, Ying-Zuo Chen
doaj   +1 more source

A Novel Communication System For Deaf And Dumb People using gesture [PDF]

open access: yesITM Web of Conferences, 2020
Human Beings know each other and contact with themselves through thoughts and ideas.The best way to present our idea is through speech. Some people don’t have the power of speech; the only way they communicate with others is through sign language.
Ambavane Pritesh   +5 more
doaj   +1 more source

A Single-Stage LED Driver Based on ZCDS Class-E Current-Driven Rectifier as a PFC for Street-Lighting Applications [PDF]

open access: yes, 2018
This paper presents a light-emitting diode (LED) driver for street-lighting applications that uses a resonant rectifier as a power-factor corrector (PFC).
Chainarin Ekkaravarodome   +5 more
core   +2 more sources

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