Results 31 to 40 of about 58,304 (309)

A robust high-efficiency cross-coupled charge pump circuit without blocking transistors [PDF]

open access: yes, 2018
This document is the Accepted Manuscript version of the following article: Minglin Ma, Xinglong Cai, Yichuang Sun, and Nike George, ‘A robust high-efficiency cross-coupled charge pump circuit without blocking transistors’, Analog Integrated Circuits and ...
Cai, Xinglong   +3 more
core   +2 more sources

Ion peak narrowing by applying additional AC voltage (ripple voltage) to FAIMS extractor electrode [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2010
The use of a non-uniform electric field in a high-field asymmetric waveform ion mobility spectrometry (FAIMS) analyzer increases sensitivity but decreases resolution. The application of an additional AC voltage to the extractor electrode ("ripple" voltage, U(ripple)) can overcome this effect, which decreases the FAIMS peak width.
Pervukhin, Viktor V., Sheven, Dmitriy G.
openaire   +2 more sources

Adaptive virtual admittance control of bidirectional DC/DC converters for DC bus voltage ripple suppression in DC microgrids

open access: yesInternational Journal of Electrical Power & Energy Systems
DC microgrids have the risk of wideband DC bus voltage ripples. The ripple frequency may vary with system operating conditions, increasing the difficulty in voltage ripple suppression.
Yan Wu, Wei Wang, Fen Tang, Xuezhi Wu
doaj   +1 more source

A simple overlap angle control strategy for reducing commutation torque ripple in a brushless DC motor drive

open access: yesEngineering Science and Technology, an International Journal, 2017
A commutation torque ripple is generated in a brushless DC motor due to a finite time taken for current transfer between outgoing phase and incoming phase due to the phase inductance.
Chetan K. Lad, R Chudamani
doaj   +1 more source

An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]

open access: yes, 2009
This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
Armando, Eric Giacomo   +2 more
core   +2 more sources

An optimal loss-reduction control strategy for MMC considering capacitor voltage ripple suppression

open access: yesZhejiang dianli
Existing capacitor voltage ripple suppression methods primarily rely on second-harmonic circulating current injection (SHCCI). However, these methods often increase valve losses in modular multilevel converters (MMCs) , degrading operational efficiency ...
FANG Dongping   +5 more
doaj   +1 more source

Capacitors Voltage Switching Ripple in Three-Phase Three-Level Neutral Point Clamped Inverters with Self-Balancing Carrier-Based Modulation

open access: yesEnergies, 2018
This paper provides a comprehensive analysis of the capacitors voltage switching ripple for three-phase three-level neutral point clamped (NPC) inverter topologies.
Manel Hammami   +3 more
doaj   +1 more source

A three‐stage switching MMC topology for capacitor voltage ripple reduction in HVDC applications

open access: yesIET Generation, Transmission & Distribution, 2023
Modular multi‐level converters (MMCs) are a mainstay in many HVDC transmission projects worldwide. Half‐bridge MMC (HB‐MMC) is mostly used in the current project. The large capacitor of sub modules (SMs) is often required in MMC to ensure the low voltage
Qiang Fan   +4 more
doaj   +1 more source

Input current ripple reduction of DC/DC converters

open access: yesEnergy Reports, 2023
The input current ripple problem of DC/DC converters receives more and more attention recently. To meet the increasingly demanding requirements, the fundamental components of the current ripple are researched and the corresponding current ripple ...
Xinyi Zhu   +6 more
doaj   +1 more source

A High Voltage Ratio and Low Ripple Interleaved DC-DC Converter for Fuel Cell Applications

open access: yesThe Scientific World Journal, 2012
This paper proposes a high voltage ratio and low ripple interleaved boost DC-DC converter, which can be used to reduce the output voltage ripple. This converter transfers the low DC voltage of fuel cell to high DC voltage in DC link. The structure of the
Long-Yi Chang   +2 more
doaj   +1 more source

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