Results 41 to 50 of about 20,670 (208)
Direct AC/DC Rectifier With Mitigated Low-Frequency Ripple Through Inductor-Current Waveform Control [PDF]
, 2015 In a rectification system with unity power factor, the input power consists of a dc and a double-line frequency power component. Traditionally, an electrolytic capacitor (E-Cap) is used to buffer the double-line frequency power such that the dc output ...
Hui, SYR, Li, S, Tan, SC, Zhu, GR
core +1 more source
A 2T Dual Port Capacitor-Less DRAM
IEEE Electron Device Letters, 2014 A novel two-transistor (2T) dual port capacitor-less DRAM concept based on bulk floating body is demonstrated for the first time in this letter. The read operation can be performed without disturbance of refresh or write. A novel read method is proposed to improve device performance especially at high temperature.
Hui Li, Yinyin Lin
openaire +1 more source
A Single-Stage LED Driver Based on ZCDS Class-E Current-Driven Rectifier as a PFC for Street-Lighting Applications [PDF]
, 2018 This paper presents a light-emitting diode (LED) driver for street-lighting applications that uses a resonant rectifier as a power-factor corrector (PFC).
Chainarin Ekkaravarodome +5 more
core +2 more sources
Energy Reports, 2020 In this paper, we present an inductor-less direct ac–ac converter with improved nesting-type topology. Unlike existing direct ac–ac converters, the proposed ac–ac converter combines a voltage equalizer and a switched-capacitor (SC) simple converter ...
Kei Eguchi +4 more
doaj +1 more source
An Identification Method for DC-Link Capacitor Capacitance of Grid Connected Inverter
Shanghai Jiaotong Daxue xuebao, 2022 DC-link for the capacitor is one of the most vulnerable components of the grid connected converter, whose capacitance identification will help to improve the system reliability by finding and replacing the aging capacitor in time.
ZHU Chenghao, WANG Han, SUN Guoqi, WEI Xiaobin, WANG Fuwen, CAI Xu
doaj +1 more source
Best usage of free-space capacitors in ASIC regulators [PDF]
, 2013 In this work we examine how to improve the performance of voltage regulators in application specific integrated circuits (ASICs) by placing capacitors into free layout space.
D. Droste, M. Siegel, T. Maier
core +1 more source
A New Capacitor-Less Buck DC-DC Converter for LED Applications
Active and Passive Electronic Components, 2017 In this paper, a new capacitor-less DC-DC converter is proposed to be used as a light emitting diode (LED) driver. The design is based on the utilization of the internal capacitance of the LED to replace the smoothing capacitor.
Munir Al-Absi +2 more
doaj +1 more source
International Journal of Electrochemical Science, 2020 Lithium-ion capacitors are kinds of advanced energy storage systems, which possess performance of lithium-ion battery and electrical double layer capacitor.
Yifei Ren, Jing Li, Jianqiang Guo
doaj +1 more source
Analysis of the Mechanism and Control of the Unbalanced Operation of Three-Phase Four-Wire Inverters
Applied Sciences, 2023 In this paper, a solution is proposed to the problem of the unequal phase imbalance of output voltage caused by a three-phase, four-wire, split capacitor inverter when the load is unbalanced.
Fuzhuan Wu +4 more
doaj +1 more source
A Survey, Classification and Critical Review of Light-Emitting Diode Drivers [PDF]
, 2015 Based on a survey on over 1400 commercial LED drivers and a literature review, a range of LED driver topologies are classified according to their applications, power ratings, performance and their energy storage and regulatory requirements.
Hui, SYR +5 more
core +1 more source