Results 41 to 50 of about 3,524,493 (338)

A terahertz grid frequency doubler [PDF]

open access: yes, 1998
We present a 144-element terahertz quasi-optical grid frequency doubler. The grid is a planar structure with bow-tie antennas as a unit cell, each loaded with a planar Schottky diode.
Alina Moussessian   +7 more
core   +2 more sources

An Interleaved Soft Switching High Step-Up Converter With Low Input Current Ripple and High Efficiency

open access: yesIEEE Access, 2019
This paper proposes a high step-up low-ripple dc-dc converter for sustainable energy conversion. A high step-up voltage gain is obtained with an input-current doubler and a switched-capacitor circuit rather than having to use a transformer with a high ...
Tao Zeng, Zhen Wu, Liangzong He
doaj   +1 more source

Quadrature LC VCO with passive coupling and phase combining network [PDF]

open access: yes, 2016
A circuit and method for generating a signal is disclosed. The circuit includes a set of wide tuning LC tanks, a set of core transistors cross coupled to the set of wide tuning LC tanks, and a combining network coupled to the set of wide tuning LC tanks ...
O, Kenneth K.   +2 more
core   +1 more source

Novel Phase-Shifted Full-Bridge Converter Employing Voltage-Doubler Inductor for High-Power Electric Vehicles [PDF]

open access: yesE3S Web of Conferences
Highly efficient high potential energy conversion is designs are necessary to the developing high potential and high energy consuming electric vehicle (EV) applications.
M G Nitheeskumar   +5 more
doaj   +1 more source

A 216–256 GHz fully differential frequency multiplier-by-8 chain with 0 dBm output power [PDF]

open access: yes, 2018
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence
Borngräber, Johannes   +6 more
core   +1 more source

A Self-Powered VDJT AC–DC Conversion Circuit for Piezoelectric Energy Harvesting Systems

open access: yesDesigns, 2023
A comprehensive model for micro-powered piezoelectric generator (PG), analysis of operation, and control of voltage doubler joule thief (VDJT) circuit to find the piezoelectric devices (PD’s) optimum functioning points are discussed in the present ...
Muhammad Kamran   +4 more
doaj   +1 more source

Ultraefficient Voltage Doubler Based on a GaN Resonant Switched-Capacitor Converter

open access: yesIEEE Journal of Emerging and Selected Topics in Power Electronics, 2019
In this paper, we present a highly efficient and compact voltage doubler based on a resonant switched-capacitor converter implemented with GaN FETs. Two possible approaches for its implementation are analyzed and compared.
M. Vasić   +5 more
semanticscholar   +1 more source

Array concepts for solid-state and vacuum microelectronics millimeter-wave generation [PDF]

open access: yes, 1989
The authors have proposed that the increasing demand for contact watt-level coherent sources in the millimeter- and submillimeter-wave region can be satisfied by fabricating two-dimensional grids loaded with oscillators and multipliers for quasi-optical ...
Hwu, Ruey J.   +6 more
core   +1 more source

Integrated boost‐forward‐flyback converter with high step‐up for green energy power‐conversion applications

open access: yesIET Power Electronics, 2021
An isolated high step‐up converter is proposed for renewable energy sources with low voltages, such as photovoltaic (PV) cells of solar energy and fuel cells of hydrogen energy, to achieve high voltage levels for series‐connection batteries and DC‐bus ...
Kuo‐Ching Tseng   +2 more
doaj   +1 more source

Millimeter-Wave Diode-Grid Frequency Doubler [PDF]

open access: yes, 1988
Monolithic diode grid were fabricated on 2-cm^2 gallium-arsenide wafers in a proof-of-principle test of a quasi-optical varactor millimeter-wave frequency multiplier array concept.
Chen, Howard Z.   +5 more
core   +1 more source

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