induction motor efficiency
... The information on motor performance has been obtained from 6 manufacturers : General Electrique, Toshiba, Reliance, Teco-Westinghouse, ABB and US Motors. The type of motor selected is the one that the manufacturer recommend for the pulp and paper industry. These motors have minimum characteristics ...
... The information on motor performance has been obtained from 6 manufacturers : General Electrique, Toshiba, Reliance, Teco-Westinghouse, ABB and US Motors. The type of motor selected is the one that the manufacturer recommend for the pulp and paper industry. These motors have minimum characteristics ...
Novel Techniques of RF High Power Measurement
... a) Observation Period is large compared to the RF signal frequency: fw<
... a) Observation Period is large compared to the RF signal frequency: fw<
1W Audio Power Amplifier with Shutdown Mode
... different from the classical single-ended amplifier configuration where one side of its load is connected to ground. A bridge amplifier design has a few distinct advantages over the single-ended configuration, as it provides differential drive to the load, thus doubling output swing for a specified ...
... different from the classical single-ended amplifier configuration where one side of its load is connected to ground. A bridge amplifier design has a few distinct advantages over the single-ended configuration, as it provides differential drive to the load, thus doubling output swing for a specified ...
J.R.Warren, K.A. Rosowski, and D.J. Perreault, “Transistor Selection and Design of a VHF dc-dc Power Converter,” IEEE Transactions on Power Electronics , Vol. 23, No. 1, pp. 27-37, Jan. 2008.
... range depends greatly on the characteristics of the power semiconductor devices. In this section, methods are introduced for assessment and comparison of MOS devices in VHF operation under soft switching and soft gating conditions. These comparisons are made on the basis of their calculated performa ...
... range depends greatly on the characteristics of the power semiconductor devices. In this section, methods are introduced for assessment and comparison of MOS devices in VHF operation under soft switching and soft gating conditions. These comparisons are made on the basis of their calculated performa ...
Slip power recovery systems When are Wound rotor motors
... drives. As a bonus, any excess capacity built in to the source converter can be used to correct other lagging power factor loads on the system. Low harmonics at utility Previous thyristor based systems injected significant harmonic currents into the utility system. In contrast, the PWM SPR converter ...
... drives. As a bonus, any excess capacity built in to the source converter can be used to correct other lagging power factor loads on the system. Low harmonics at utility Previous thyristor based systems injected significant harmonic currents into the utility system. In contrast, the PWM SPR converter ...
BDTIC www.BDTIC.com/infineon Application Note No. 098
... The Darlingtons are biased via their RF output pin (pin 3). Figure 4 shows the dependence of BGA614’s current consumption on the supply voltage for different values of the bias Resistor R1. R1 stabilizes the supply current by using voltage feedback. For BGA612 and BGA616 exist similar plots which ca ...
... The Darlingtons are biased via their RF output pin (pin 3). Figure 4 shows the dependence of BGA614’s current consumption on the supply voltage for different values of the bias Resistor R1. R1 stabilizes the supply current by using voltage feedback. For BGA612 and BGA616 exist similar plots which ca ...
Monolithic Power Systems, Inc.
... This technology ensures the lamp will strike at any temperature and in any environment. In addition no additional components are required for varying the frequency of the lamp. ...
... This technology ensures the lamp will strike at any temperature and in any environment. In addition no additional components are required for varying the frequency of the lamp. ...
Low Power Phase Locked Loop Design with Minimum Jitter
... Gauri Shankar Singh, Devesh Singh, S.Moorthi,” Low Power Low Jitter Phase Locked Loop for High Speed Clock Generatio. Asia Pacific Conference on Postgraduate Research in Microelectronics & Electronics (PRIMEASIA), Page(s):192 – 196, ISSN : 2159-2144, December ...
... Gauri Shankar Singh, Devesh Singh, S.Moorthi,” Low Power Low Jitter Phase Locked Loop for High Speed Clock Generatio. Asia Pacific Conference on Postgraduate Research in Microelectronics & Electronics (PRIMEASIA), Page(s):192 – 196, ISSN : 2159-2144, December ...
Development of an Electrolarynx Capable of Supporting Tonal Distinctions in...
... each of the Mandarin tone, a real-time controller is required so that when the user chooses a tone, it can be picked from the controller memory and converted to a digital output signal. After reviewing options we decided to choose the Atmel ATmega328 based Arduino Nano due to its: Small size (0.7” X ...
... each of the Mandarin tone, a real-time controller is required so that when the user chooses a tone, it can be picked from the controller memory and converted to a digital output signal. After reviewing options we decided to choose the Atmel ATmega328 based Arduino Nano due to its: Small size (0.7” X ...
The Grid and its Future - Companion Piece to Summer 2015
... blowing) and automatically disconnect when the energy supply is not available. As part of the “self dispatching” capabilities of distributed generators, their control systems can also be set up to detect small changes in frequency. If there are too many generators available, the frequency increas ...
... blowing) and automatically disconnect when the energy supply is not available. As part of the “self dispatching” capabilities of distributed generators, their control systems can also be set up to detect small changes in frequency. If there are too many generators available, the frequency increas ...
Document
... Most actuators take power from their inputs in order to deliver power at their outputs Some devices consume only a fraction of a watt while others consume hundreds or perhaps thousands of watts In most cases the efficiency of the energy conversion is less than 100%, in many cases it is much le ...
... Most actuators take power from their inputs in order to deliver power at their outputs Some devices consume only a fraction of a watt while others consume hundreds or perhaps thousands of watts In most cases the efficiency of the energy conversion is less than 100%, in many cases it is much le ...
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.