Results 121 to 130 of about 11,656 (311)

Capacitor mismatch compensation for the quasi-passive switched-capacitor DAC

open access: yes, 1998
A method to eliminate the effect of capacitor mismatch for a switched-capacitor DAC is described. The method consists of two elements. The first element is the use of a compensating switching algorithm, which can eliminate the effect of capacitor ...
Audenaert, S   +3 more
core   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Improved Step‐Up Z‐Source Inverter Based on Symmetric Switched Capacitor and Inductor

open access: yesIET Power Electronics
This paper introduces a new switched‑inductor Z‑source inverter topology that employs a capacitor‑assisted inductor network, achieving a significantly higher voltage‑gain factor while simultaneously reducing capacitor voltage stress over an extended duty‑
Masoumeh Gholami   +2 more
doaj   +1 more source

A new switched-capacitor inverter for electric vehicles

open access: yes, 2006
This paper presents a new switched-capacitor inverter circuit based on partial charging. A number of switched-capacitor inverter circuits have been developed, but most of them are based on switching of fully charged capacitors in specific sequence to ...
Chau, KT, Chan, CC, Chan, MSW
core   +1 more source

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

open access: yesAdvanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin   +5 more
wiley   +1 more source

Switched-opamp technique for low-voltage switched capacitor circuits

open access: yes, 2002
A switched capacitor circuit is described that uses two switchable operational amplifiers that operate in parallel and in alternate clock phases. In a preferred embodiment of the invention, the two operational amplifiers may be implemented by a single ...
Luong, Howard Cam, Cheung, Sin Luen
core  

VSC transmission system using flying capacitor multilevel converters and hybrid PWM control

open access: yes, 2007
A high-voltage direct current (HVDC) transmission system based on three-level flying capacitor (FC) multilevel converters with hybrid pulse-width modulation (PWM) is presented in this paper.
Agelidis, V.G., Xu, L.
core   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

Linear switched-capacitor circuit theorems

open access: yes, 2006
This paper presents an analysis approach of switched-capacitor circuits, using circuit theorems. It defines the concepts of phasor and impedance, it extends many network theorems to switched-capacitor circuits, and it gives examples of their use in ...
Efthivoulidis, G.
core  

Dual Resonant Switched-Capacitor Polarity Inverter [PDF]

open access: yes, 2019
This thesis presents a new dual resonant switched-capacitor converter topology that inverts the polarity of input voltages and can regulate the gain continuously between 0 and –1, even at light load operation.
Brown, Benjamin Yeager
core  

Home - About - Disclaimer - Privacy