The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper investigates flyback auxiliary power supply system of the input series modular power electronic converter. Through utilizing the input series output independent (ISOI) structure, a modular auxiliary power supply scheme is proposed. And in order to ensure input voltage sharing (IVS) between each auxiliary power supply module, A novel master slave input voltage sharing control strategy is...
This paper presents an output-capacitorless low-dropout (LDO) regulator with with −132dB power supply rejection ratio (PSRR) at 1KHz. By using a Rising-Class-A voltage buffer, the non-dominant parasitic poles can be pushed to higher frequencies and leads to good stability in power supply rejection ratio (PSRR) performance. The proposed circuit is designed with 0.18-µm CMOS process technology. The...
The modular multilevel converters (MMCs) are composed of many sub-modules(SMs) connected in series. Module control unit is key components of the SMs, and a auxiliary power supply is needed to energize the module control unit. However, Many MMCs projects require the voltage of IGBT to be higher than 3300V, which means the input voltage of auxiliary power supply used in MMCs should be higher than 2500V...
A low power flipped voltage follower (FVF) based output capacitor-less low-dropout (LDO) regulator, designed for the low power radio frequency identification (RFID) chips, has been proposed and simulated by using a standard 0.18 µm CMOS process in this paper. Utilizing the FVF structure and dynamic bias current technique, proposed LDO is able to achieve a fast transient response and the power supply...
The communication power supply need to meet the requirements of high dynamic and steady state, so as to ensure the stability when disturbed. V2C control method is studied by analyzing the effect of the parameters on the output with the help of small signal model. Then the V2C adaptive control method based on fuzzy rules is put forward to improve dynamic response and stability of system when disturbed,...
This paper focuses on the analyses of output stability of Single-Phase-Matrix-Converter (SPMC) type AC-AC converter for power management in the IT system. The SPMC employing power MOS devices is studied to contribute to the efficiency improvement and stabilization of AC-DC power supply circuit in IT systems. In detail, the output voltage dependency of SPMC is evaluated with triangular wave control...
Taiwan Photon Source (TPS) is a most important project for the Taiwan government; from 2007 to 2013 the total budget amounts to more thaan NT6,885 million. It will set up a synchrotron storage ring (electron energy 3.3 GeV, circumference 518 m, low emittance) that will provide one of the world's brightest synchrotron sources of x-rays. This paper focuses on the stability of the TPS power supply and...
This paper analyzes a voltage regulator with widely range of power supply which is essential module in switching mode power supply. It is composed of Pre-charging Circuit, Bandgap Reference Circuit, Current Reference Circuit, Thermal Protect Circuit and Low-dropout (LDO) regulator. A frequency compensation method with buffer stage isolation is utilized, that conduces to the improvements of transient...
This document presents a compilation of results from tests performed by iRoC Technologies on SER induced by alpha particles on SRAM memories for technology nodes from 180 nm to 65 nm. The aim of this study is to establish the variation of sensitivity with technology node for SEU and MCU, and to analyze the possible influence of different designs and technological parameters at a given technology node.
In this work, the bulk-gate controlled circuit to improve the power supply ripple ratio (PSRR) of a Low Dropout Regulator (LDO) which deteriorates due to lowering power consumption is proposed. Designing with 0.25 mum CMOS process, the simulation results by HSPICE shown that the proposed circuit provides a high performance of PSRR even though 1/10 of the power consumption is reduced compare to the...
Class D amplifiers are becoming the most feasible solution for embedded audio application. However, distortions due to the non-linear nature of switching stage are the main drawback for this amplifier topology. This paper discusses the design and implementation of high fidelity audio class D using sliding mode control scheme. This design method proves to be a cost effective solution for industrial...
Stability is an important design consideration in power electronics systems. To this end, it is often of interest to predict the region of attraction (ROA) associated with a stable equilibrium point. In the case of the presence of constraints that need to be satisfied, one is faced with the problem of estimating a restricted ROA (RROA). Recently practical methods for estimating RROAs have been proposed...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.