HMC903 Datasheet
... Radio Frequency Input. This pad is matched to 50 Ω. See Figure 3 for the interface schematic. Power Supply Voltages. Power supply voltage for the amplifier. See Figure 24 and Figure 25 for required external components. See Figure 4 for the interface schematic. Radio Frequency Output. This pad is mat ...
... Radio Frequency Input. This pad is matched to 50 Ω. See Figure 3 for the interface schematic. Power Supply Voltages. Power supply voltage for the amplifier. See Figure 24 and Figure 25 for required external components. See Figure 4 for the interface schematic. Radio Frequency Output. This pad is mat ...
43 Power quality improvement by using multi converter unified
... current and voltage distortion. Whereas SCR phase control creates the desirable average power factor, DC SCR drives operate at less than this. In addition, line notching occurs when SCR’s commutate, creating transient peak recovery voltages that can be 3 to 4 times the nominal line voltage depending ...
... current and voltage distortion. Whereas SCR phase control creates the desirable average power factor, DC SCR drives operate at less than this. In addition, line notching occurs when SCR’s commutate, creating transient peak recovery voltages that can be 3 to 4 times the nominal line voltage depending ...
Short questions and answers EE1251 Electrical Machines II 1. Why
... Steam turbines are found to operate at fairly good efficiency only at high speeds. The high speed operation of rotors tends to increase mechanical losses and so the rotors should have a smooth external surface. Hence, smooth cylindrical type rotors with less diameter and large axial length are used ...
... Steam turbines are found to operate at fairly good efficiency only at high speeds. The high speed operation of rotors tends to increase mechanical losses and so the rotors should have a smooth external surface. Hence, smooth cylindrical type rotors with less diameter and large axial length are used ...
J.W. Phinney and D.J. Perreault, “Filters with Active Tuning for Power Applications,” 2001 IEEE Power Electronics Specialists Conference , Vancouver, Canada, June 2001, pp. 363-370.
... pled shunt resonators (Figs. 2(b) and 12) were also considered for use in conjunction with the phase-lock tuning system. Shunt networks divert ripple current by presenting low AC impedance at the switching frequency and its harmonics. The impedance magnitude of a series-tuned network at its resonant ...
... pled shunt resonators (Figs. 2(b) and 12) were also considered for use in conjunction with the phase-lock tuning system. Shunt networks divert ripple current by presenting low AC impedance at the switching frequency and its harmonics. The impedance magnitude of a series-tuned network at its resonant ...
W. Rieutort-Louis, L. Huang, Y. Hu, J. Sanz-Robinson, T. Moy, Y. Afsar, J.C. Sturm, N. Verma, and S. Wagner, "Current Cain of Amorphous Silicon Thin-Film Transistors Above the Cutoff Frequency", Device Research Conference (DRC) (2014)
... A key challenge for the development of high functionality thin-film large-area electronic systems is the operational frequencies achievable by Thin-Film Transistors (TFTs). These frequencies are typically limited by low transconductances and large (gate and overlap) capacitances. However, we have re ...
... A key challenge for the development of high functionality thin-film large-area electronic systems is the operational frequencies achievable by Thin-Film Transistors (TFTs). These frequencies are typically limited by low transconductances and large (gate and overlap) capacitances. However, we have re ...
SiC Schottky Diode in Power Factor Correction
... Often, snubbers used to limit reverse recovery currents and reduce EMI generation can be eliminated. Efficiency is only one goal that challenges a power supply designer. Cost, weight, size and electrical performance are also foremost on the designer’s mind. An efficient design can help meet these go ...
... Often, snubbers used to limit reverse recovery currents and reduce EMI generation can be eliminated. Efficiency is only one goal that challenges a power supply designer. Cost, weight, size and electrical performance are also foremost on the designer’s mind. An efficient design can help meet these go ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331
... Simulation has become a very powerful tool for industrial application as well as in academics, nowadays. It is now essential for an electrical engineer to understand the concept of simulation to study the system or circuit behaviour without damaging it .The tools for doing the simulation in various ...
... Simulation has become a very powerful tool for industrial application as well as in academics, nowadays. It is now essential for an electrical engineer to understand the concept of simulation to study the system or circuit behaviour without damaging it .The tools for doing the simulation in various ...
Novel Circuit Breaker Modeling in 275kV Substation Hamid Radmanesh Razieh Salimi Atani
... power transformer ferroresonance has been studied in [24]. This paper organized as follow: At rst the reason of occurrence ferroresonance in transformers is described. Then various types of ferroresonance in voltage transformer in the case of considering novel model of circuit breaker are explained ...
... power transformer ferroresonance has been studied in [24]. This paper organized as follow: At rst the reason of occurrence ferroresonance in transformers is described. Then various types of ferroresonance in voltage transformer in the case of considering novel model of circuit breaker are explained ...
Paper Title (use style: paper title)
... International Journal of Enhanced Research in Science Technology & Engineering, ISSN: 2319-7463 Vol. 4 Issue 4, April-2015, pp: (218-226), Impact Factor: 1.252, Available online at: www.erpublications.com FILTERs, UPQC etc are some of the devices used to improve the power quality of the voltage and ...
... International Journal of Enhanced Research in Science Technology & Engineering, ISSN: 2319-7463 Vol. 4 Issue 4, April-2015, pp: (218-226), Impact Factor: 1.252, Available online at: www.erpublications.com FILTERs, UPQC etc are some of the devices used to improve the power quality of the voltage and ...
J.W. Phinney, J.H. Lang, and D.J. Perreault, “Multi-Resonant Microfabricated Inductors and Transformers,” 2004 IEEE Power Electronics Specialists Conference, Aachen, Germany, June 2004, pp. 4527-4536.
... passive components with harmonically related impedance nulls and maxima, (2) board- and wafer-scale construction techniques for such structures, and (3) circuit topologies that exploit the harmonically related impedance extrema they provide. A threedimensional copper electroforming process has been ...
... passive components with harmonically related impedance nulls and maxima, (2) board- and wafer-scale construction techniques for such structures, and (3) circuit topologies that exploit the harmonically related impedance extrema they provide. A threedimensional copper electroforming process has been ...
Utility frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency of the oscillations of alternating current (AC) in an electric power grid transmitted from a power plant to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains power around the world.During the development of commercial electric power systems in the late 19th and early 20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over the other and no apparent desire for complete worldwide standardization.Unless specified by the manufacturer to operate on both 50 and 60 Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.