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Presentation - International Spacewire Conference 2008
Presentation - International Spacewire Conference 2008

... Series resistance driving a matched transmission line and load – there is no capacitive loading and no data-rate reduction 305Ω provides a useful current limit (50mA at 15V over-voltage at the driver output) Supply current is just 3.5mA – same low power as before Other, similar, circuits can be used ...
Power Distribution Systems
Power Distribution Systems

... Electrical efficiency can generally be maximized by designing systems that minimize the losses in conductors, transformers and utilization equipment. Proper voltage level selection plays a key factor in this area and will be discussed later. Selecting equipment, such as transformers, with lower oper ...
PAM2316 Description Pin Assignments
PAM2316 Description Pin Assignments

... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
investigation of numerical technique to evaluate frequency response
investigation of numerical technique to evaluate frequency response

Paper Title (use style: paper title) - Scientific Bulletin of Electrical
Paper Title (use style: paper title) - Scientific Bulletin of Electrical

... mostly low order harmonics. We can observe though, for high frequency harmonic orders the amplitudes tends to be lower in HR than in RR but because the amplitudes are very low these orders can be neglected. Also while in RR some harmonics are missing or are very low (e.g. second order harmonics, at ...
TPS54872 数据资料 dataSheet 下载
TPS54872 数据资料 dataSheet 下载

... signals. Noise injected between the two grounds can degrade the performance of the TPS54872, particularly at higher output currents. Ground noise on an analog ground plane can also cause problems with some of the control and bias signals. For these reasons, separate analog and power ground traces ar ...
Dual Multiplexed LVDS Repeaters (Rev. C
Dual Multiplexed LVDS Repeaters (Rev. C

Switch Mode DC Power Supply with Battery Backup SEC
Switch Mode DC Power Supply with Battery Backup SEC

... Please refer to the Layout at Fig. 2.1. The unit consists of 2 Sections - Switch Mode Power Supply (SMPS) Section and Battery Backup and Charging Section. The unit works as a DC Uninterruptible Power Source (DC UPS) in conjunction with an external 12V, Lead Acid backup battery. As long as AC input p ...
16890_chapter-21-zener-diodes
16890_chapter-21-zener-diodes

... – Breakdown voltage decreases as temperature increases ...
10V Precision Voltage Reference (Rev. B)
10V Precision Voltage Reference (Rev. B)

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676

High-Precision, Low-Noise, Rail-to-Rail Output, 11MHz JFET Op Amp OPA140 OPA2140,
High-Precision, Low-Noise, Rail-to-Rail Output, 11MHz JFET Op Amp OPA140 OPA2140,

... Junction Temperature, TJ ESD Ratings ...
maxon DC motor and maxon EC motor Key information
maxon DC motor and maxon EC motor Key information

... estimation in most applications. In the diagram, speed n, current Imot, power output P2 and efficiency h are applied as a function of torque M at constant voltage Umot. Speed-torque line This curve describes the mechanical behavior of the motor at a constant voltage Umot: – Speed decreases linearly ...
Up to 3 A step-down switching regulator
Up to 3 A step-down switching regulator

Dual Bridge Stepper or DC Motor Driver (Rev. C)
Dual Bridge Stepper or DC Motor Driver (Rev. C)

... using the xPHASE/xENBL signals to control the stepper motor, and varying the xVREF voltages. The current flowing through the corresponding H-bridge varies according to the equation given below. A very high degree of microstepping can be achieved through this technique. With DC motors, current contro ...
QUALITROL-IRIS POWER IS THE WORLD’S LARGEST PROVIDER OF MONITORING
QUALITROL-IRIS POWER IS THE WORLD’S LARGEST PROVIDER OF MONITORING

... each rotor slot. Any change in the ampere-turns within a coil due to shorted turns produces a change in the leakage flux. To measure the leakage flux, a flux probe sensor is permanently installed on the stator. During machine operation, the flux from each passing slot will induce a voltage in the fl ...
Improve Operating Efficiency and Reduce Installed Cost
Improve Operating Efficiency and Reduce Installed Cost

GENERAL PRODUCTION TECHNOGEL
GENERAL PRODUCTION TECHNOGEL

... • The mixture is pumped at very high pressure (up to a maximum of 250 Bar) through a small orifice which, as a result of the extrusion, homogenizes the mixture. • The homogenizing portion (impact head and counter-head) is made from special abrasionresistant material. • The homogenization pressure is ...
MAX5180/MAX5183 Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs General Description
MAX5180/MAX5183 Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs General Description

... devices are designed for 10pVs glitch operation to minimize unwanted spurious signal components at the output. An on-board 1.2V bandgap circuit provides a well-regulated, low-noise reference that can be disabled for external reference operation. The MAX5180/MAX5183 are designed to provide a high lev ...
PAM2310 Description Pin Assignments
PAM2310 Description Pin Assignments

... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...


... is needed. The earliest on-line PD measurement methods detected the PD pulse currents by means of a high frequency current transformer at the neutral point [2,3], but today most machines around the world use 80-pF high voltage capacitors on the output bus to measure the PD [1,5]. The majority of on- ...
KFE10008-E
KFE10008-E

... the electronic control. When fault currents in excess of the programmed minimum-trip value are detected in one or more phases, a signal from the control actuates a low energy tripper in the operating mechanism of the recloser to trip the opening springs and open the interrupter contacts. Closing ene ...
Evaluates:  MAX8677A MAX8677A Evaluation Kit General Description Features
Evaluates: MAX8677A MAX8677A Evaluation Kit General Description Features

... When the input current limit is reached, the first action taken by the MAX8677A is to reduce battery-charge current. This allows the SYS regulator to stay in dropout, or at 5.3V, during heavy loads, thus reducing power dissipation. If, after the charge current is reduced to 0mA, the load at SYS stil ...
Evaluates:  MAX17062 MAX17062 Evaluation Kit General Description Features
Evaluates: MAX17062 MAX17062 Evaluation Kit General Description Features

... 640kHz, cut the trace between pins 1 and 2 of jumper JU2 and short pins 2 and 3. Refer to the MAX17062 data sheet for selecting the proper components. ...
Inductive and Capacitive Reactance
Inductive and Capacitive Reactance

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Three-phase electric power



Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.
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