Results 31 to 40 of about 6,049,894 (296)

Constant-Current Gate Driver for GaN HEMTs Applied to Resonant Power Conversion

open access: yesEnergies, 2021
New semiconductor technology is enabling the design of more reliable and high-performance power converters. In particular, wide bandgap (WBG) silicon carbide (SiC) and gallium nitride (GaN) technologies provide faster switching times, higher operating ...
Héctor Sarnago   +3 more
doaj   +1 more source

A Driving Power Supply for Piezoelectric Transducers Based on an Improved LC Matching Network

open access: yesSensors, 2023
In the ultrasonic welding system, the ultrasonic power supply drives the piezoelectric transducer to work in the resonant state to realize the conversion of electrical energy into mechanical energy.
Ye Feng, Yang Zhao, Hao Yan, Huafeng Cai
doaj   +1 more source

Decoupled PI Controllers Based on Pulse-Frequency Modulation for Current Sharing in Multi-Phase LLC Resonant Converters

open access: yesIEEE Access, 2021
The LLC series resonant converter has emerged as a solution to applications requiring power conversion with isolation, reduced volume and high efficiency, such as PV systems and EV chargers.
Martin Moreno   +3 more
doaj   +1 more source

Application-Oriented Review of the LLC-Based Resonant Converters

open access: yesIEEE Access
The LLC resonant converter is a widely utilized power electronics converter, due to its numerous industrial and domestic applications. This converter offers some advantages such as soft-switching operation of all switches, high efficiency, high power ...
Jasem Shahsevani, Reza Beiranvand
doaj   +1 more source

Piezoelectric Energy Harvesting Solutions

open access: yesSensors, 2014
This paper reviews the state of the art in piezoelectric energy harvesting. It presents the basics of piezoelectricity and discusses materials choice. The work places emphasis on material operating modes and device configurations, from resonant to non ...
Renato Caliò   +6 more
doaj   +1 more source

High efficient series resonant converter using direct power conversion

open access: yes, 2018
This study proposes a high efficient series resonant ac-dc converter. The proposed series resonant converter has a structure integrated with an ac chopper.
Lee, SH   +4 more
core   +1 more source

Energy harvesting from vibrations with a nonlinear oscillator [PDF]

open access: yes, 2009
In this paper we present a nonlinear electromagnetic energy harvesting device that has a broadly resonant response. The nonlinearity is generated by a particular arrangement of magnets in conjunction with an iron-cored stator.
Clare, Lindsay R.   +11 more
core   +1 more source

Tuning class E inverters applied in inductive links using saturable reactors [PDF]

open access: yes, 2014
This paper investigates the performance of Class E inverters used in wireless power transfer applications based on resonant inductive coupling. The variations in the load and the distance between the coils cause Class E inverters to operate in non ...
Whidborne, James F.   +2 more
core   +1 more source

A resonant multi-channel sharing current LED driver based on variable inductor

open access: yesJournal of Hebei University of Science and Technology, 2017
In order to solve the problems of the traditional LED driver adopting the frequency control with high EMI, pulse width modulation (PWM) with the complex control circuit,and the LLCC, LCLC resonant topology realizing constant current output system with ...
Guozhuang LIANG, Hanlei TIAN, Xiaoyu XU
doaj   +1 more source

Design of Class E Resonant Rectifiers and Diode Evaluation for VHF Power Conversion [PDF]

open access: yes, 2014
Resonant rectifiers have important applications in very-high-frequency (VHF) power conversion systems, including dc-dc converters, wireless power transfer systems, and energy recovery circuits for radio-frequency systems.
Perreault, David J.   +8 more
core   +1 more source

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