Results 11 to 20 of about 11,230 (308)

Quasi Z‐source inverter with switched‐capacitor‐inductor for enhancing boost factor

open access: yesIET Power Electronics, 2021
Two structures are proposed based on the quasi Z‐source inverter (qZSI), which can significantly raise the output voltage in applications, including photovoltaic and fuel cells, in which the input voltage is low.
Jamal Abbasi Bolaghi   +3 more
doaj   +1 more source

Prevention of the current transformer saturation by using negative resistance

open access: yesIET Generation, Transmission & Distribution, 2021
In the power grid, various conditions may occur that saturate the core of a current transformer. Saturation of the protection core of the current transformers can cause a malfunction in the protection relays.
Saeed Sanati, Yousef Alinejad‐Beromi
doaj   +1 more source

Extending the horizontal transmission range of an inductive wireless power transfer system using passive elliptical resonators

open access: yesIET Power Electronics, 2021
This paper investigates the development of a passive elliptical planar coil for extending the horizontal transmission distance in an inductive transmitter‐receiver wireless‐power transfer system (WPT).
Cristina A. Alexandru, Dibin Zhu
doaj   +1 more source

Detection of Interturn Short-Circuit Faults in Dry-Type Voltage Transformers Using the Pulse Voltage Method

open access: yesEnergies, 2023
This article investigates the application of the pulse voltage method for detecting interturn short-circuit faults in the high-voltage windings of dry-type voltage transformers.
Hongyan Nie   +3 more
doaj   +1 more source

Efficient finite element modelling of litz wires in toroidal inductors

open access: yesIET Power Electronics, 2021
Accurate understanding of losses and frequency‐dependent winding parameters have been an important aspect for selecting the right configuration of stranded conductors in power‐electronic inductors. An approach for modelling frequency‐dependent parameters
Jay Panchal   +2 more
doaj   +1 more source

A wideband noise-canceling CMOS LNA exploiting a transformer [PDF]

open access: yes, 2006
A broadband LNA incorporating single-ended to differential conversion, has been successfully implemented using a noise-canceling technique and a single on-chip transformer. The LNA achieves a high voltage gain of 19dB, a wideband input match (2.5-4.0 GHz)
Blaakmeer, Stephan C.   +3 more
core   +5 more sources

Design Techniques for Low-Voltage RF/mm-Wave Circuits in Nanometer CMOS Technologies

open access: yesApplied Sciences, 2022
This paper reviews state-of-the-art design approaches for low-voltage radio frequency (RF) and millimeter-wave (mm-wave) CMOS circuits. Effective design techniques at RF/mm-wave frequencies are described, including body biasing in fully depleted (FD ...
Egidio Ragonese
doaj   +1 more source

Distributed active transformer - a new power-combining andimpedance-transformation technique [PDF]

open access: yes, 2002
In this paper, we compare the performance of the newly introduced distributed active transformer (DAT) structure to that of conventional on-chip impedance-transformations methods. Their fundamental power-efficiency limitations in the design of high-power
Aoki, Ichiro   +3 more
core   +1 more source

Solid-state transformer based on modular multilevel converters

open access: yesThe Journal of Engineering, 2019
A new highly compact topology for solid-state transformers is presented. It is based on modular multilevel converters and, therefore, has their usual advantages such as superior voltage shape, high reliability, and scalability.
Patrick Himmelmann, Marc Hiller
doaj   +1 more source

Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS Performance

open access: yesIEEE Access, 2021
This paper introduces eight novel interleaved non-isolated dc-dc converters with ultra-high step-up and zero voltage switching (ZVS) capabilities for renewable energy systems.
Parham Mohseni   +4 more
doaj   +1 more source

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