Results 51 to 60 of about 20,607 (273)

Hybrid HVDC for supply of power to offshore oil platforms [PDF]

open access: yes, 2004
A HVDC hybrid system, comprising a line commutated thyristor HVDC converter and a STATCOM, is proposed in this paper for supplying power to offshore oil platforms that do not have their own generation. The proposed system combines the robust performance,
Andersen, B., Cartwright, P., Xu, L.
core  

Multifunctional Microstructured Surfaces by Microcontact Printing of Reactive Microgels

open access: yesAdvanced Functional Materials, EarlyView.
Reactive poly(N‐vinylcaprolactam‐co‐glycidyl methacrylate) microgels are used as functional inks to create surface‐grafted arrays on glass via microcontact printing. The patterns (10–50 µm widths and spacings) enable stable binding and post‐functionalization with dyes and peptides.
Inga Litzen   +4 more
wiley   +1 more source

A Differential 4-Path Highly Linear Widely Tunable On-Chip Band-Pass Filter [PDF]

open access: yes, 2010
A passive switched capacitor RF band-pass filter with clock controlled center frequency is realized in 65nm CMOS. An off-chip transformer which acts as a balun, improves filter-Q and realizes impedance matching.
Ghaffari, Amir   +2 more
core   +8 more sources

A Wide Input Voltage Range Unidirectional Resonant Switched‐Capacitor Converter for Fuel Cell Applications

open access: yesIET Power Electronics
This paper introduces a full bridge high voltage gain resonant switched capacitor converter (SCC) providing soft switching conditions for all power semiconductors above and below the resonant frequencies.
Sajad Afshar Zarandi   +2 more
doaj   +1 more source

Nonlinear switched-current CMOS IC for random signal generation [PDF]

open access: yes, 1993
A nonlinear switched-current circuit is presented that implements a chaotic algorithm for the generation of broadband, white analogue noise. The circuit has been fabricated in a double-metal, single-poly 1.6µm CMOS technology and uses a novel, highly ...
Delgado Restituto, Manuel   +2 more
core   +1 more source

Programmable multiplexed switched-capacitor filters

open access: yesProceedings of the 33rd Midwest Symposium on Circuits and Systems, 1990
An area-efficient method is proposed to realize fully programmable SC filters through the use of time-sharing. Previously, fully programmable SC filters have been restricted to only second-order due to the large area requirement of the programmable capacitor arrays (PCAs).
X.F. Wania, D.A. Johns, A.S. Sedra
openaire   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Nonlinear Switched-Capacitor Networks: Basic Principles and Piecewise-Linear Design [PDF]

open access: yes, 1985
The applicability of switched-capacitor (SC) components to the design of nonlinear networks is extensively discussed in this paper. The main objective is to show that SC's can be efficiently used for designing nonlinear networks.
Chua, Leon O.   +3 more
core   +1 more source

The Dynamics of Interfacial Trap States in High‐Detectivity Near‐Infrared Photomultiplication Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
Photomultiplication organic photodetectors (PM OPDs) are an attractive strategy for health‐monitoring. Here, PM‐OPDs are reported with a specific detectivity of 5.7 × 1012 Jones and external quantum efficiency values of 3500% under −10 V. The dynamics of carrier trapping in these devices are elucidated through trap selective spectroscopical techniques.
Marie Houot   +9 more
wiley   +1 more source

Programmable low-voltage continuous-time filter for audio applications [PDF]

open access: yes, 1999
The implementation of a continuous-time filter (CTF) useful for audio frequency applications is presented in this paper. The filter functions can be programmed and tuned with two independent control variables.
Rueda Rueda, Adoración   +1 more
core  

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