Modeling of Eddy-Current Loss of Electrical Machines and Transformers
... proposed analytical methods on a three-phase transformer, a dc motor, and an induction motor with the results of time-stepping finiteelement analysis and experiments. We provide detailed equations for the prediction of iron losses. These equations can be directly applied in the design and control of ...
... proposed analytical methods on a three-phase transformer, a dc motor, and an induction motor with the results of time-stepping finiteelement analysis and experiments. We provide detailed equations for the prediction of iron losses. These equations can be directly applied in the design and control of ...
A Simple Approach tyo YIG Oscil
... However strange the idea may seem at first, a YIG should be heated and cooled. Heated so that the YIG pellet reaches its operating temperature rapidly, and cooled so that the heat building up in the main tuning coil can be used to heat the YIG up really well. Cooling is necessary, above all, at rela ...
... However strange the idea may seem at first, a YIG should be heated and cooled. Heated so that the YIG pellet reaches its operating temperature rapidly, and cooled so that the heat building up in the main tuning coil can be used to heat the YIG up really well. Cooling is necessary, above all, at rela ...
A SiGe BiCMOS LNA FOR mm-WAVE APPLICATIONS
... involved during the administrative and financial arrangements specific to my inclusion in this wider project between our two countries. Thank you to Ioana Petrini, Cristina Buiculescu and Tilla Nel for their assistance towards the administrative tasks involved. ...
... involved during the administrative and financial arrangements specific to my inclusion in this wider project between our two countries. Thank you to Ioana Petrini, Cristina Buiculescu and Tilla Nel for their assistance towards the administrative tasks involved. ...
LTC5586 - 6GHz High Linearity I/Q
... Note 11: If the VCM pin is left floating, it will self bias to a nominal 0.9V. Note 12: This is the recommended operating range, operation outside the listed range is possible with degraded performance to some parameters. Note 13: DC offset measured differentially between IFIP and IFIM and between I ...
... Note 11: If the VCM pin is left floating, it will self bias to a nominal 0.9V. Note 12: This is the recommended operating range, operation outside the listed range is possible with degraded performance to some parameters. Note 13: DC offset measured differentially between IFIP and IFIM and between I ...
MAX98358 PDM Input Class D Audio Power Amplifier General Description Features
... (SPDM) input signal directly into the DAC. Data on the rising edge of PDM_CLK is considered left-channel data while data on the falling PDM_CLK edge is right channel. A mono sum feature is also implemented with SPDM data input by summing the data from both rising and falling clock edges. Active emis ...
... (SPDM) input signal directly into the DAC. Data on the rising edge of PDM_CLK is considered left-channel data while data on the falling PDM_CLK edge is right channel. A mono sum feature is also implemented with SPDM data input by summing the data from both rising and falling clock edges. Active emis ...
EFFICIENT CONTROL OF THE SERIES RESONANT CONVERTER FOR HIGH FREQUENCY OPERATION
... limits of switching frequency are pushed. The goal of this thesis is to address two areas that practically limit the achievable switching frequency of resonant topologies. Traditional control methods based on single cycle response are impractical at high frequency; forcing the use of pulse density m ...
... limits of switching frequency are pushed. The goal of this thesis is to address two areas that practically limit the achievable switching frequency of resonant topologies. Traditional control methods based on single cycle response are impractical at high frequency; forcing the use of pulse density m ...
Aalborg Universitet Converters
... Several passive filter topologies to dampen the filter resonance have been reviewed or discussed in [29]–[31]. However, only limited information about the choice of the damping circuit ratings is given. In [32] and [33], a comparative analysis of the filters is completed for a fixed switching freque ...
... Several passive filter topologies to dampen the filter resonance have been reviewed or discussed in [29]–[31]. However, only limited information about the choice of the damping circuit ratings is given. In [32] and [33], a comparative analysis of the filters is completed for a fixed switching freque ...
ALTIVAR® 28 AC Drives
... latest sensorless flux vector technology in a compact design for three-phase asynchronous squirrel cage motors. This versatile drive offers increased performance while maintaining cost-effectiveness. The ATV28 provides advanced speed control capabilities for motors from 0.5–20 hp. Industrial users a ...
... latest sensorless flux vector technology in a compact design for three-phase asynchronous squirrel cage motors. This versatile drive offers increased performance while maintaining cost-effectiveness. The ATV28 provides advanced speed control capabilities for motors from 0.5–20 hp. Industrial users a ...
Keysight 423B, 8470B, 8472B, 8473B/C Low Barrier Schottky Diode
... These detectors can be used in a wide variety of applications ranging from lab and production measurements to systems components. Because of their flatness and match, these detectors can be used for accurately measuring transmission and reflection characteristics in CW or swept-frequency measurement ...
... These detectors can be used in a wide variety of applications ranging from lab and production measurements to systems components. Because of their flatness and match, these detectors can be used for accurately measuring transmission and reflection characteristics in CW or swept-frequency measurement ...
ADA4960-1 数据手册DataSheet 下载
... The ADA4960-1 is a high performance, differential amplifier optimized for RF and IF applications. It achieves better than 63 dB IMD3 performance for frequencies up to and beyond 1 GHz, making it an ideal driver for 8-bit to 10-bit giga-sample analogto-digital converters (ADCs). ...
... The ADA4960-1 is a high performance, differential amplifier optimized for RF and IF applications. It achieves better than 63 dB IMD3 performance for frequencies up to and beyond 1 GHz, making it an ideal driver for 8-bit to 10-bit giga-sample analogto-digital converters (ADCs). ...
The Effective Insulation of Masts and Towers for
... to electrical storm activity and also the direct strikes of lightning. ...
... to electrical storm activity and also the direct strikes of lightning. ...
AN10713 18 W CFL lamp design using UBA2024 application
... Care must be taken that the ignition frequency is not lower than 1.6 times the operating frequency and not higher than 2.2 times the operating frequency. As the frequency sweep starts at 2.5 times the operating frequency, an ignition frequency that is too high will not give enough time for the quasi ...
... Care must be taken that the ignition frequency is not lower than 1.6 times the operating frequency and not higher than 2.2 times the operating frequency. As the frequency sweep starts at 2.5 times the operating frequency, an ignition frequency that is too high will not give enough time for the quasi ...
WECC-0107 Posting 3 VAR-501-WECC
... designed to add or subtract torque to a generator with the goal of damping oscillations on the WECC Interconnection’s Bulk-Electric System (BES) that otherwise would be amplified if the AVR is operated by itself. PSSs within WECC (originally called Supplementary Control Systems) were developed in th ...
... designed to add or subtract torque to a generator with the goal of damping oscillations on the WECC Interconnection’s Bulk-Electric System (BES) that otherwise would be amplified if the AVR is operated by itself. PSSs within WECC (originally called Supplementary Control Systems) were developed in th ...
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.