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The high voltage system supplies the bias voltage to the 88 silicon sensors which comprise the LHCb Vertex Locator (VELO). This note describes the results of the tests which have been performed on the hardware of the high voltage system of…

Instrumentation and Detectors · Physics 2008-08-14 B. Rakotomiaramanana , C. Parkes , L. Eklund

Designs of high-voltage (HV) systems for creating a drift electric field in liquid argon TPCs are reviewed. In ongoing experiments systems capable of approx. 100 kV are realised for a drift field of 0.5-1 kV/cm over a length of up to 1.5 m.…

Instrumentation and Detectors · Physics 2011-07-28 S. Horikawa , A. Badertscher , L. Kaufmann , M. Laffranchi , A. Marchionni , M. Messina , G. Natterer , A. Rubbia

We report here the characterization (temperature coefficients and noise level) of selected voltage references in the frequency range from 10^(-5) to 10 Hz. The goal of this work is to update previous studies, with a characterization at…

Instrumentation and Detectors · Physics 2013-12-19 Hubert Halloin , Pierre Prat , Julien Brossard

The novel MPGD-based photon detectors of COMPASS RICH-1 consist of large-size hybrid MPGDs with multi-layer architecture including two layers of Thick-GEMs and a bulk resistive MicroMegas. The top surface of the first THGEM is coated with a…

Regulating the voltage of the common DC bus, also referred to as the load bus, in DC microgrids is crucial for ensuring reliability and maintaining the nominal load voltage, which is essential for protecting sensitive loads from voltage…

Systems and Control · Electrical Eng. & Systems 2024-11-12 Nabil Mohammed , Shehab Ahmed , Charalambos Konstantinou

The adjustable capacity of a line-commutated-converter High Voltage Direct Current (LCC-HVDC) connected to a power system, called the LCC-HVDC maximum emergency power capability or HVDC-MC for short, plays an important role in determining…

Systems and Control · Electrical Eng. & Systems 2020-06-23 Long Peng , Junbo Zhao , Yong Tang , Lamine Mili , Zhuoyuan Gu , Zongsheng Zheng

Voltage stability refers to the ability of a power system to maintain acceptable voltages among all buses under normal operating conditions and after a disturbance. In this paper, a measurement-based voltage stability assessment (VSA)…

Systems and Control · Computer Science 2019-02-27 Zhijie Nie , Xiaohu Zhang , Xiaoying Zhao , Yiran Xu , Di Shi , Jiajun Duan , Zhiwei Wang

The integration of high-thermal-conductivity diamond films onto silicon carbide (SiC) substrates offers a promising pathway for thermal management in high-power electronic devices. Here, we investigate the depth-dependent thermal…

Materials Science · Physics 2026-04-15 Kexin Zhang , Xiaosong Han , Ershuai Yin , Xin Qian , Junjun Wei , Puqing Jiang

A family of interleaved current-fed high step-up dc-dc converters are introduced and analyzed here by combining a voltage multiplier (VM) and an active clamp circuit for high-voltage high-power applications. Low input currents and output…

Systems and Control · Electrical Eng. & Systems 2023-05-30 R. Beiranvand , S. H. Sangani

Artificial-intelligence (AI) workloads are driving rapid growth in data-center electricity use and rack power density, increasing demand for power-delivery systems that are efficient and robust to fast load transients. Conventional…

Systems and Control · Electrical Eng. & Systems 2026-01-27 Jian Xu , Xinxiong Jiang , Yi Bao , Yuchen Zheng , Xuhui Chen , Qiang Xu , Siyang Liao , Deping Ke , Xiaoqi Gao

The analytical theory for the voltage-current characteristics of the large inductance (L>100 pH) high-T_c DC SQUIDs that has been developed previously is consistently compared with the computer simulations and the experiment. The…

Superconductivity · Physics 2007-05-23 Ya. S. Greenberg , I. L. Novikov

Modern distribution grids are currently being challenged by frequent and sizable voltage fluctuations, due mainly to the increasing deployment of electric vehicles and renewable generators. Existing approaches to maintaining bus voltage…

Systems and Control · Computer Science 2019-12-05 Qiuling Yang , Gang Wang , Alireza Sadeghi , Georgios B. Giannakis , Jian Sun

In recent years, the progress on low temperature detector technologies has allowed design of large scale experiments aiming at pushing down the sensitivity on the neutrino mass below 1\,eV. Even with outstanding performances in both energy…

Nanopositioning techniques currently applied to characterize physical properties of materials interesting for applications at the microscopic scale rely on high-voltage electronic control circuits that should have the lowest possible noise…

Instrumentation and Detectors · Physics 2014-09-12 Cristian H. Belussi , Mariano Gómez Berisso , Yanina Fasano

Volt/var control (VVC) of smart PV inverter is becoming one of the most popular solutions to address the voltage challenges associated with high PV penetration. This work focuses on the local droop VVC recommended by the grid integration…

Optimization and Control · Mathematics 2018-10-30 Ankit Singhal , Venkataramana Ajjarapu , Jason. C. Fuller , Jacob Hansen

In this letter, we present a study of optimized TMR magnetic field sensors as a function of voltage bias. The 1/f low-frequency noise is quantified by the Hooge-like parameter {\alpha} which allows to compare the low-frequency behavior of…

High-voltage direct current (HVDC) is a commonly used technology for long-distance electric power transmission, mainly due to its low resistive losses. In this paper a distributed controller for multi-terminal high-voltage direct current…

Optimization and Control · Mathematics 2015-12-15 Martin Andreasson , Dimos V. Dimarogonas , Henrik Sandberg , Karl H. Johansson

There is a trade-off between transient performance and line current distortion of the DC bus voltage control of single-phase grid-connected voltage source converters. This paper presents an improved DC bus voltage control scheme of such…

Systems and Control · Electrical Eng. & Systems 2022-03-30 Sakda Somkun , Viboon Chunkag

Transition Edge Sensors (TESs) are characterized by the intrinsic figure of merit to resolve both the energy and the statistical distribution of the incident photons. These properties lead TES devices to become the best single photon…

Instrumentation and Detectors · Physics 2013-06-25 L. Lolli , E. Taralli , C. Portesi , E. Monticone , M. Rajteri

Ability to understand and model the performance limits of nanowire transistors is the key to design of next generation devices. Here, we report studies on high-mobility junction-less gate-all-around nanowire field effect transistor with…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Aniruddha Konar , John Mathew , Kaushik. Nayak , Mohit. Bajaj , Rajan K. Pandey , Sajal Dhara , K. V. R. M. Murali , Mandar Deshmukh