Results 61 to 70 of about 243,917 (303)
Control Circuitry for a Partial Series Resonant Converter
Communications, 2001 A control circuit for a new high-frequency DC-DC converter, suitable for application in a few kilowatts range, is presented. The converter topology is based on a half bridge series resonant converter, i. e. having only two switches. Resonance occurs only
Ivan Feno, Eduard Jadron, Pavol Spanik
doaj +1 more source
Constant-frequency clamped-mode resonant converters [PDF]
IEEE Transactions on Power Electronics, 1987 Two clamped-mode resonant converters are proposed which operate at a constant frequency while retaining the desired features of conventional series- and parallel-resonant converters. State-plane analyses are performed which identify all possible circuit-operating modes of a clamped-mode series-resonant converter and define their mode boundaries.
Fu-Sheng Tsai, Peter Materu, Fred C. Lee
openaire +1 more source
Boundary-mode operation of the boost converter for thermoelectric generator maximum power tracking [PDF]
, 2014 This article has been made available through the Brunel Open Access Publishing Fund.Performance-favourable and noteworthy characteristics of the Boost converter are reported, when the latter operates in Maximum Power Tracking (MPT) mode, while fed from a
Theodoridis, M
core
Two-stage optimization method for efficient power converter design including light load operation [PDF]
, 2012 Power converter efficiency is always a hot topic for switch mode power supplies. Nowadays, high efficiency is required over a wide load range, e.g., 20%, 50% and 100% load.
Lam, James +3 more
core +1 more source
Cell wall target fragment discovery using a low‐cost, minimal fragment library
FEBS Letters, EarlyView.LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan +5 more
wiley +1 more source
Key Technologies of Explosion-proof Frequency Converter Applied in Coal Mine
Gong-kuang zidonghua, 2012 The paper analyzed problems of voltage level, heat dissipation, EMC and conversion efficiency of inverter existed in using process of explosion-proof frequency converter in coal mine underground, and introduced methods of solving these problems in ...
ZHU Long-ji, ZHANG Xu-li
doaj
矿业科学学报In order to solve the difficulty in calculating the RMS value of human electlic shcck current caused by pulse modulated wave in case of electrocution accident in low voltage frequency converter IT power supply system of open-pit coal mine fire fighting ...
YUAN Guangzhong +4 more
doaj +1 more source
Traveling-wave tube circuit simplifies microwave relay [PDF]
, 1965 Circuit with a sawtooth-modulated traveling-wave tube, which acts as a frequency converter and as an amplifier, simplifies microwave transmission.
Allen, W. K. +2 more
core +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Gong-kuang zidonghua, 2013 In view of problem of bigger speed difference between frequency levels in high frequencies in speed regulation technology of six-pulse-wave AC/AC frequency converter, the paper proposed a closed-loop voltage and speed regulation method based on six-pulse-
LI Gao-ju, DU Qing-na
doaj