• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
System reliability
System reliability

H45014650
H45014650

AN1549: Addressing Power Issues in Real Time Clock
AN1549: Addressing Power Issues in Real Time Clock

W04406104107
W04406104107

... alteration, games, graphics etc. This has resulted in Integrated circuits that have combined various complex signal processing blocks and graphics processing units to meet the office and entertainment requirements. While these efforts have solved the real-time problem, they leave the problem of incr ...
Instructions for use and maintenance
Instructions for use and maintenance

... Then plug the power cord into a properly grounded standard outlet ~ 230V, 50/60Hz and turn the device on by the main switch. Before switching it on, make sure that the handle is in a safe place and the heating button is not switched on. Apply the working coil to the desired material to heat up and ...
Discussion States - Carleton University
Discussion States - Carleton University

... Q Y ...
A Novel Back Up Wide Area Protection Technique for Power
A Novel Back Up Wide Area Protection Technique for Power

... A new wide area differential protection (WADP) system is proposed to suit the need of the shipboard application [6]. The close proximity of all the components in a shipboard power system makes communication less of an issue than in a landbased system. With an overall view of the protected system and ...
Fitting Instructions
Fitting Instructions

... fuse. The Xenon beacon is dual voltage and the current rating is 4A at 12vdc and 2A at 24vdc. ...
Fuzzy logic controlled Doubly Fed Induction Generator (DFIG)
Fuzzy logic controlled Doubly Fed Induction Generator (DFIG)

... [13]. As the wind penetration in the grid becomes significant, the use of variable speed WECS for supplementary jobs such as power smoothening and harmonic mitigation are compulsory in addition to its power generation. This power smoothening is achieved by including super magnetic energy storage sys ...
ExcelAir® CPE3100
ExcelAir® CPE3100

... ExcelAir®CPE3100 enables simultaneous support of IP-based voice and video solutions, as well as the delivery of rich IP-based data applications via a IEEE 802.3u standard Ethernet port. This package is lightweight and easy to install, and includes a comprehensive installation utility. Ease of instal ...
Installation Instructions Model PSC-12
Installation Instructions Model PSC-12

H series 1200 V IGBTs on 3-phase full-bridge DC
H series 1200 V IGBTs on 3-phase full-bridge DC

edms_tmp_1967707_DIQH_procedure - lhc-div-mms
edms_tmp_1967707_DIQH_procedure - lhc-div-mms

... it. If not following the operation instructions, you contravene the safety regulations for operating the DIQH test system. Before operating the quench heater power supply check for any obvious signs of physical damage that may occur during transportation and installation. In case of doubt report imm ...
Form Factors Power Supplies and Working Inside the Computer
Form Factors Power Supplies and Working Inside the Computer

... Selecting a Power Supply • Power supply or power supply unit (PSU) – Box inside a computer case supplying power to motherboard and other installed devices – Both a rectifier and transformer • Converts AC house current to DC • Steps down voltage from 110 V or 220 V to 3.5, 5, and 12 V ...
fusion 2000w psu
fusion 2000w psu

... Not all chargers are capable of accepting higher voltages as they were originally intended to operate from a vehicle battery source. Very usefully, the Fusion 2000W is designed to provide a wide variety of voltages and, even when dialled down to its lowest output setting of 12 V (to operate with old ...
RPM 88 / 44 / 22 Data Sheet
RPM 88 / 44 / 22 Data Sheet

... The Rane SR 3 Smart Remote is a generic, wired, RS-485 remote control with a 31-position LED indicator, data encoder with built in push switch and a 98 x 64 pixel LCD display with a programmable backlight. SR Configurator software (included) sets up the SR 3 device. The encoder can be locked out by ...
480 Vac Supply Voltage
480 Vac Supply Voltage

ATU 800 User Manual
ATU 800 User Manual

... Data logging, telemetry and local intelligence (sequences) are all combined in the one unit and thus the need for separate outstations and data loggers is reduced. MODBUS, WITSDNP3, AquaCom, FSK and SDI-12 protocols are available to accept input and output data from existing PLCs and intelligent ins ...
View paper - Efficient Power Conversion
View paper - Efficient Power Conversion

Aalborg Universitet Kocewiak, Lukasz; Hjerrild, Jesper ; Bak, Claus Leth
Aalborg Universitet Kocewiak, Lukasz; Hjerrild, Jesper ; Bak, Claus Leth

... B. MV collector system In order to represent the system by one single equivalent circuit, the MV collector system should be lumped together. Different cable models can be applied afterwards. The choice is dependent on many aspects such as cable length, assumed accuracy, and calculation burden. WTs, ...
Three-phase Voltage Relay
Three-phase Voltage Relay

... product separately from power lines carrying high voltages or currents. Do not wire in parallel with or on the same cable as power lines. Other measures for reducing noise include running lines along separate ducts and using shield lines. ...
execution of at89s52 microcontroller based single
execution of at89s52 microcontroller based single

... are promising; they have nearly sinusoidal outputvoltage waveforms, output current with better harmonic profile, less stressing of electronic components due to reduced voltages, switching losses that are lower than those of conventional two-level inverters, a smaller filter size, and lower EMI, all ...
BP36398403
BP36398403

Discrete Wavelet Transforms for Synchronization of Power
Discrete Wavelet Transforms for Synchronization of Power

... (PLLs) (El-Amawy & Mirbod, 1988; Freijedo et al., 2009). While the first one can be easily implemented by means of analog circuitry, power system disturbances such as partial discharges can result on synchronization problems and an erroneous reference current i ∗ . Due to this fact, the second appro ...
atwinc1500 - Atmel Corporation
atwinc1500 - Atmel Corporation

... functions. Alternatively, ATWINC1500A allows for an external 32kHz clock to be used for this purpose, which is provided through Pin 24 (RTC_CLK). Software selects whether the internal clock or external clock is used. The internal low-power clock is ring-oscillator based and has accuracy within 10,00 ...
< 1 ... 279 280 281 282 283 284 285 286 287 ... 576 >

Power over Ethernet



Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras. Unlike standards such as Universal Serial Bus which also power devices over the data cables, PoE allows long cable lengths. Power may be carried on the same conductors as the data, or it may be carried on dedicated conductors in the same cable.There are several common techniques for transmitting power over Ethernet cabling. Two of them have been standardized by IEEE 802.3. Since only two of the four pairs are needed for 10BASE-T or 100BASE-TX, power may be transmitted on the unused conductors of a cable. In the IEEE standards, this is referred to as Alternative B. Power may also be transmitted on the data conductors by applying a common-mode voltage to each pair. Because twisted-pair Ethernet uses differential signalling, this does not interfere with data transmission. The common mode voltage is easily extracted using the center tap of the standard Ethernet pulse transformer. This is similar to the phantom power technique commonly used for powering audio microphones. In the IEEE standards, this is referred to as Alternative A.In addition to standardizing existing practice for spare-pair and common-mode data pair power transmission, the IEEE PoE standards provide for signalling between the power sourcing equipment (PSE) and powered device (PD). This signaling allows the presence of a conformant device to be detected by the power source, and allows the device and source to negotiate the amount of power required or available. Up to a 25.5 watts is available for a device.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report