نتایج جستجو برای: capacitors voltages

تعداد نتایج: 15933  

2016
Fatma Ezzahra LAHOUAR Mahmoud HAMOUDA

The main goal of this paper is to detect the opencircuit fault of the electrolytic capacitors usually used in the dcbus of a three phase/level NPC active rectifier. This phenomenon causes unavoidable overvoltage across the dc-bus leading therefore to the destruction of the converter’s power semiconductors. The real-time detection of this fault is therefore vital to avoid severe damage as well a...

Journal: :CSEE Journal of Power and Energy Systems 2021

In this paper, a new generalized step-up multilevel DC-AC converter is proposed, which suitable for applications with low-voltage input sources such as photovoltaic power generation and electric vehicles. This inverter can achieve high voltage gain by controlling the series-parallel conversion of DC supply capacitors. Only one source few devices are employed. The maximum output number levels be...

2015
Chih-Wei Chen Ayman Fayed Sumit Chaudhary Chris Chong-Nuen Chu Randall Geiger Nathan Neihart

Modern mixed-signal SoCs integrate a large number of sub-systems in a single nanometer CMOS chip. Each sub-system typically requires its own independent and wellisolated power supply. However, to build these power supplies requires many large off-chip passive components, and thus the bill of material, the package pin count, and the printed circuit board area and complexity increase dramatically...

2015
Aminy E. Ostfeld Igal Deckman Abhinav M. Gaikwad Claire M. Lochner Ana C. Arias

Additive and low-temperature printing processes enable the integration of diverse electronic devices, both power-supplying and power-consuming, on flexible substrates at low cost. Production of a complete electronic system from these devices, however, often requires power electronics to convert between the various operating voltages of the devices. Passive components-inductors, capacitors, and ...

Journal: :SSRG international journal of electrical and electronics engineering 2023

In order to construct the levels for staircase waveforms, this study introduces a module reconfiguring asymmetrical multilevel inverters that use DC link capacitors. The multilayer converter's configuration reduces count of sources. Lower sources, on other hand, permit creation 13 levels. suggested inverter generates from two erratic dc sources (2VDC and 1VDC). 14 semiconductor switches charged...

Journal: :Electronics 2022

The battery charging power electronics interface of an electric vehicle (EV) must be capable bidirectional flow to enable both grid-to-vehicle (G2V) and vehicle-to-grid (V2G) operations. In the presence a single/three-phase AC supply, front-end EV charger employs factor correction (PFC) rectifier, which should have capability facilitate V2G mode. A conventional active rectifier functions in boo...

Journal: :Electronics 2023

In this paper, an optimized memristor emulator circuit is designed, by using nine MOSFET transistors and a ground capacitor. Our area- power-optimized can be used for basic data storage processing at the monitoring edge, in real-time applications. The shows nonlinear voltage–current relationship, but no multiplier provides memristor’s characteristics. As result, proposed has very low chip area....

Journal: :Microelectronics Journal 2009
Keivan Navi Mohammad Hossein Moaiyeri Reza Faghih Mirzaee Omid Hashemipour Babak Mazloom Nezhad

Two novel low-power 1-bit Full Adder cells are proposed in this paper. Both of them are based on majority-not gates, which are designed with new methods in each cell. The first cell is only composed of input capacitors and CMOS inverters, and the second one also takes advantage of a high-performance CMOS bridge circuit. These kinds of designs enjoy low power consumption, a high degree of regula...

2010
Nitiphat Pisutthipong Adirek Jantakun Montree Siripruchyanun

This article presents a novel current-mode universal biquadratic network providing both standard transfer functions. The principal element of proposed network is CCCCTAs. The feature of this network is that the pole frequency quality factor can be orthogonally adjusted via input bias currents. Besides performing as a universal filter, with an appropriate condition, the proposed network can func...

2009
Nitiphat Pisutthipong Phamorn Silapan Montree Siripruchyanun

This article presents a current-mode quadrature oscillator using current controlled current conveyor transconductance amplifiers (CC-CCTAs) as active elements. The proposed circuit is realized from a lossy integrator and a lossy differentiator. The oscillation condition and oscillation frequency can be electronically controlled via input bias currents. The proposed oscillator can be applied to ...

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