Results 31 to 40 of about 3,595 (173)

Transformer design considerations for noncontinuous mode, boost, flyback converters [PDF]

open access: yesProceedings:Electrical Electronics Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 2002
This paper presents some design considerations for small, flyback transformers used to charge energy storage capacitors from 0.1 to 5 kV from a low voltage DC source. The transformer has two roles: to act as an energy storage device, and to ratio the primary to secondary voltages.
openaire   +1 more source

A Bipolar ±13 mV Self-Starting and 85% Peak Efficiency DC/DC Converter for Thermoelectric Energy Harvesting

open access: yesEnergies, 2020
This paper presents a novel converter for boosting the low-voltage output of thermoelectric energy harvesters to power standard electronic circuits. The converter can start up from a fully depleted state of the system off a bipolar ±13 mV input and can ...
Harald Dillersberger   +2 more
doaj   +1 more source

Analysis of a Bidirectional DC-DC Converter with High Voltage Gain [PDF]

open access: yes, 2015
A novel bidirectional DC-DC converter with high conversion ratio is proposed in this paper. The proposed converter uses the three windings coupled-inductor to achieved high voltage conversion ratio.
Razzaghzadeh, B. (Behrouz)   +1 more
core   +1 more source

A Power Conversion Technique with Hierarchical Equalization Charging Topology for LiFePO4 Batteries

open access: yesMicromachines, 2021
An energy-storage scheme with hierarchical equalization charging topology applied in a series-connected battery system is proposed in this paper. The proposed hierarchical equalization charging topology (HECT), which combines an equalizer-within module ...
Kuo-Ching Tseng   +2 more
doaj   +1 more source

A flicker-free electrolytic capacitor-less AC-DC LED driver [PDF]

open access: yes, 2012
published_or_final_versio
Ruan, XB   +5 more
core   +1 more source

High Frequency Wide Output Range Boost-Flyback Converter with Zero Voltage Switching [PDF]

open access: yes2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC), 2018
DC-DC converters with high step-up capability are increasingly used in sustainable energy, aerospace and high voltage direct current (HVDC) systems. This paper presents a high voltage step-up dc-dc converter with low voltage stress on the switches and with a wide output range.
Yuan Liu   +6 more
openaire   +3 more sources

Implementation of Snubber Circuits in a PV-Based Off-Grid Electric Vehicle Charging Station—Comparative Case Studies

open access: yesEnergies, 2021
With the penetration of electric vehicles (EVs), there have been paradigm shifts in the transportation sector. EVs are ideally considered to be clean and eco-friendly, but they can overload the existing grid infrastructure and significantly contribute ...
Divya Krishnan Nair   +2 more
doaj   +1 more source

An Efficiency-Focused Design of Direct-DC Loads in Buildings [PDF]

open access: yes, 2019
Despite the recent interest in direct current (DC) power distribution in buildings, the market for DC-ready loads remains small. The existing DC loads in various products or research test beds are not always designed to efficiently leverage the benefits ...
Brown, Richard   +2 more
core   +3 more sources

Uphill production of dihydrogen by enzymatic oxidation of glucose without an external energy source

open access: yesNature Communications, 2018
Most chemical reactions proceed downhill without external energy input. Here, authors employ an electronic flyback and a boost converter to store energy and spontaneously drive an uphill reaction.
Emmanuel Suraniti   +7 more
doaj   +1 more source

Controller design for a flyback coverter in operating interconnected to grid mode, for photovoltaic applications

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
This article presents the modeling of a flyback converter integrated in a two-stage photovoltaic microinverter with grid connection, and the design of the respective controllers.
César Leonardo Trujillo Rodriíguez   +2 more
doaj   +1 more source

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