Results 61 to 70 of about 4,894,841 (348)

ECCCII-Based Current-Mode Universal Filter with Orthogonal Control of w_o and Q [PDF]

, 2014
This paper presents a new current-mode current-controlled four-input five-output universal filter employing one current-controlled current conveyor (CCCII), one electronically tunable CCCII and two grounded capacitors. The proposed configuration provides
Junnapiya, S., Khateb, F., Kumngern, M., Phasukkit, P., Tungjitkusolmun, S.   +4 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

A DC-DC Converter for Electric Vehicle Application

Majlesi Journal of Electrical Engineering
An innovative Synchronous Buck Converter (SBC) with a wide input voltage range is presented in this article for use in Electric Vehicle (EV) applications.
Thirumalaisamy Bogaraj, Paul Sweety Jose, Angappan Natarajan, Subramanian Karthikeyan   +3 more
doaj   +1 more source

Control analysis and experimental verification of a practical dc–dc boost converter

Journal of Electrical Systems and Information Technology, 2015
This paper presents detailed open loop and closed loop analysis on boost dc–dc converter for both voltage mode control and current mode control. Here the boost dc–dc converter is a practical converter considering all possible parasitic elements like ESR ...
Saswati Swapna Dash, Byamakesh Nayak
doaj   +1 more source

Modeling of subharmonics and chaos in DC motor drives [PDF]

, 1997
In this paper, the nonlinear dynamics of both voltage-mode and current-mode controlled dc motor drive systems are presented. The investigation is based on the derivation of the discrete mappings that describe their system subharmonics and chaos in the ...
Chan, CC, Chan, David TW, Chau, KT, Chen, JH   +3 more
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

One Cycle Control of a PWM Rectifier a New Approach

Energies, 2020
This paper analyzes a Digital Signal Processor (DSP) based One Cycle Control (OCC) strategy for a Power Factor Corrector (PFC) rectifier with Common-mode Voltage (CMV) immunity. It is proposed a strategy that utilizes an emulated-resistance-controller in
Rodrigo De A. Teixeira, Werbet L. A. Silva, Guilherme A. P. De C. A. Pessoa, Joao T. Carvalho Neto, Elmer R. L. Villarreal, Andrés O. Salazar, Alberto S. Lock   +6 more
doaj   +1 more source

Closed-Form Critical Conditions of Subharmonic Oscillations for Buck Converters

, 2012
A general critical condition of subharmonic oscillation in terms of the loop gain is derived. Many closed-form critical conditions for various control schemes in terms of converter parameters are also derived.
Fang, Chung-Chieh
core   +1 more source

A Novel Mixed‐Mode Current‐Controlled Current‐Conveyor‐Based Filter

Active and Passive Electronic Components, 2002
A new mixed‐mode biquad circuit is presented. The circuit uses four dual‐output second‐generation currentcontrolled current‐conveyors (DOCCCIIs) and two grounded capacitors and can realize lowpass, highpass, bandpass and notch responses from the same topology. The circuit can be driven by voltage or current and its output can be voltage or current. The
openaire   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source