Results 221 to 230 of about 178,567 (282)

Protocol for contactless electric current sensing, processing, and storage using a drone-integrable sensor. [PDF]

STAR Protoc
Osmani K, Schulz D.
europepmc   +1 more source

A self-powered spherical compound eye with 8 ns-motion response for source-constrained drones. [PDF]

Nat Commun
Ren W, Zhao X, Tang J, Sun B, Meng Q, Xiao L, Chen Q, Shi Y, He Z, Yang Z, Zhou Y, Ni D, Wen L, Tian B, Wu X, Fan Z, Chu J, Gu L.   +17 more
europepmc   +1 more source

Nanosecond-level time-domain coding metasurface for radar signal generation. [PDF]

Nat Commun
Qian B, Zhao H, Zhu X, Li P, Hong H, Chu H, Guo YX.   +6 more
europepmc   +1 more source

Flying Capacitor Voltage Programed Mode Control for Switched-Capacitor Converters

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
This article introduces a control method for switched-capacitor (SC) converters used directly or indirectly in emerging point-of-load (PoL) applications. Compared to conventional methods of controlling SC converters relying on the simple transformer model, the introduced method takes into account system dynamics and improves transient response by ...
Tim McRae, Thomas Souvignet, Basil Eleftheriades, Aleksandar Prodic, Bruno Allard   +4 more
openaire   +5 more sources

Active capacitor voltage control of flying capacitor multilevel converters

IEE Proceedings - Electric Power Applications, 2004
A novel control strategy for voltage balancing of flying capacitor multilevel converters controlled with phase shifted SPWM is presented. Based on the polarity of the phase current, a relatively small square wave is added to the nominal modulation signals (typically sinusoidal) controlling the converter switches and in this way the flying capacitor ...
Xu, L., Agelidis, V.G.
core   +7 more sources

Flying-Capacitor-Based Chopper Circuit for DC Capacitor Voltage Balancing in Diode-Clamped Multilevel Inverter [PDF]

IEEE Transactions on Industrial Electronics, 2010
This paper proposes a flying-capacitor-based chopper circuit for dc capacitor voltage equalization in diode-clamped multilevel inverters. Its important features are reduced voltage stress across the chopper switches, possible reduction in the chopper ...
Anshuman Shukla, Avinash Joshi
exaly   +4 more sources

Active Capacitor Voltage Balancing in Single-Phase Flying-Capacitor Multilevel Power Converters

IEEE Transactions on Industrial Electronics, 2012
Two active capacitor voltage balancing schemes are proposed for single-phase (H-bridge) flying-capacitor multilevel converters. They are based on the circuit equations of flying-capacitor converters.
Mehdi Ferdowsi, Keith Corzine, Hossein Sepahvand   +2 more
exaly   +2 more sources

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On the observability of the flying capacitor converter

2009 European Control Conference (ECC), 2009
This paper addresses the continuous state estimation of a class of switched systems having modes in which the state is not fully observable. Using a suitable LaSalle principle for switched systems, we give a characterization of invariant sets and associated switching laws for which the state cannot be estimated.
Riedinger, Pierre, Sigalotti, Mario, Daafouz, Jamal   +2 more
openaire   +3 more sources

A novel bridgeless flying capacitor multilevel rectifier

International Journal of Circuit Theory and Applications, 2023
SummaryA novel transformerless three‐phase unidirectional bridgeless flying capacitor (UBFC) rectifier for medium‐voltage and high‐voltage applications is presented in this paper. The rectifier consists of three single‐phase rectifiers in wye connection; the DC outputs of the three single‐phase rectifiers are connected in parallel to provide a high ...
Yaopu Li, Hong Cheng 0003, Cong Wang 0030, Zhihao Zhao, Wei Yuan 0009, Jun Wang   +5 more
openaire   +2 more sources

New method for estimating flying capacitor voltages in stacked multicell and flying capacitor multicell converters

Journal of Zhejiang University SCIENCE C, 2010
Multicell converters are an interesting alternative for medium voltage and high power applications, because of the increased number of output voltage levels and apparent frequency. The two most significant types of multicell converter are the flying capacitor multicell (FCM) converter and its derivative, stacked multicell (SM) converter.
Arash Khoshkbar Sadigh, Gevorg B. Gharehpetian, Seyed Hossein Hosseini 0002   +2 more
openaire   +1 more source