• 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
Lowering Power at 28 nm with Xilinx 7 Series FPGAs White Paper
Lowering Power at 28 nm with Xilinx 7 Series FPGAs White Paper

... amount of static power consumption is not important. Historically, MPU and GPU class products have used HP type processes. FPGAs followed this lead, with some trade-offs of performance for acceptable power levels. Historically, MPU and GPU class products have used HP (G) type processes at 65 nm and ...
MPA 5150 SS 5 Channel Power Amp Manual
MPA 5150 SS 5 Channel Power Amp Manual

USB Type-C™ Power Path Protection With
USB Type-C™ Power Path Protection With

... orientation, role detection, and port control for Type-C current mode. The device can be configured as a downstream-facing port (DFP), upstream-facing port (UFP), or a dual-role port (DRP), which makes it ideal for any application. The CC logic block monitors the CC1 and CC2 pins for pullup or pulld ...
Датчики ускорения (акселерометры) MMA7260Q
Датчики ускорения (акселерометры) MMA7260Q

MMA7260Q - Sparkfun
MMA7260Q - Sparkfun

... implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Freescale Semiconductor reserves the right to make changes without further notice to any products herein. Freescale Semiconductor makes no war ...
4 kW-EL / 3-Phase-EL MegaPAC User Guide
4 kW-EL / 3-Phase-EL MegaPAC User Guide

... A housekeeping supply, isolated from the AC input, powers the brushless DC cooling fan and other input monitoring circuits, in addition to providing an auxiliary +5 V power source for the user. The 4kW MegaPAC - EL has a second fan for extra cooling. Excessive input currents caused by loss of a phas ...
Type EUA 3-Phase Sequence and Phase Loss Current and Voltage
Type EUA 3-Phase Sequence and Phase Loss Current and Voltage

AutomationNotebook Issue 5
AutomationNotebook Issue 5

... to this year's National Manufacturing Week were exposed to this feature firsthand when DataNet OPC was used, along with DataWorx, to compile and display test scores in the "Automation I.Q. Challenge." OPC technology allows easy and inexpensive data collection and display because it is supported by s ...
Introduction to Arduino August 2014
Introduction to Arduino August 2014

... • The RTC (real-time clock) makes use of the I2C (I-squared C) “bus” to send time stamps to the Arduino. This stands for “Inter-Integrated Circuit” and was invented by Phillips. Pins A4 and A5 are used as SDA (Serial Data Line) and SCL (Serial Clock Line) for the I2C bus on an Arduino Uno. • The SD ...
Slides - Indico
Slides - Indico

... Positive supplies: • Generate Power from single "raw" supply • AVDD / DVDD / VRef • DMC voltages • Adjustable Voltage for Vref • Real hi and lo side (2 wire) sense • Requires use of difference amplifier due to nonzero resistance of sense lines ...
Tactile Feedback Solutions Using Piezoelectric Actuators
Tactile Feedback Solutions Using Piezoelectric Actuators

WECC VGITF White Paper - Draft - Western Electricity Coordinating
WECC VGITF White Paper - Draft - Western Electricity Coordinating

... Interconnection Report published in June 2015, wind capacity has increased by more than 150% to 24.3 GW and solar capacity by 14 times to 8.4 GW. The focus of this white paper will be on wind and solar generation interconnected to the bulk transmission system. Wind and solar generation interconnecte ...
Presentation Slides
Presentation Slides

...  Transfers signals to alarm (activate/deactivate).  Sends signals to the indoor display unit for user visibility (power on, low battery, alarm activated). ...
Aalborg Universitet Power Modules
Aalborg Universitet Power Modules

... negative voltage that might be supplied to the DUT. A FPGA supervising unit provides the time control signals for the DUT and protection driving signals with a resolution of 10 ns. The series protection switch is implemented by 3.3 kV/ 3 kA IGBT modules with a larger physical size compared to that o ...
Technical Information Temperature Switch Thermophant T TTR31
Technical Information Temperature Switch Thermophant T TTR31

... – one PNP switch output – two PNP switch outputs – 2 x PNP switch outputs or one PNP switch output and 4 to 20 mA output (active) Benefits at a glance This compact temperature switch impresses with the latest in technology being used: • Integrated switching electronics for decentral and economic pro ...
ppt
ppt

Enerlin`x - Schneider Electric
Enerlin`x - Schneider Electric

... performance on an ongoing basis. Energy Operation leverages companies’ current investments in their existing systems, and can be used to communicate advanced results and performance to a broad audience for a shared understanding throughout the organization. Cloud based energy computing can also help ...
SiC Custom Power Services
SiC Custom Power Services

3rd Edition, Chapter 5
3rd Edition, Chapter 5

...  Switch receives frame from from C  notes in bridge table that C is on interface 1  because D is not in table, switch forwards frame into interfaces 2 and 3  frame received by D ...
Carbon nanotubes for "Ionic Wind" Craft or
Carbon nanotubes for "Ionic Wind" Craft or

... Note that using nanotubes for the wires would be trebly more efficient than the thicker metal wires currently used. First, their extremely small diameters should significantly increase the thrust. Second, their small weight compared to metal wires should greatly reduce the weight and third, their in ...
LAN to WAN Management guide
LAN to WAN Management guide

... Ethernet CSMA/CD algorithm 1. Adaptor receives datagram from net layer & creates frame 2. If adapter senses channel idle, it starts to transmit frame. If it senses channel busy, waits until channel idle and then transmits 3. If adapter transmits entire frame without detecting another transmission, ...
Electrical switches. Top, left to right: circuit breaker
Electrical switches. Top, left to right: circuit breaker

... achangeover switch. These may be "make-before-break" which momentarily connect both circuits, or may be "break-before-make" which interrupts one circuit before closing the other. The terms pole and throw are also used to describe switch contact variations. The number of "poles" is the number of sepa ...
DLSeries Accessories
DLSeries Accessories

... •For measuring signals floating from ground in a high-speed digital circuit •Input capacity : 2.5 pF •For high speed differential measurement such as LVDS •System measurements up to 1.5 GHz BW with DL9200 ...
power_quality_at_the.. - IDEAL INDUSTRIES, INC.
power_quality_at_the.. - IDEAL INDUSTRIES, INC.

... It must be recognized that, because of conditions beyond the control of (power utility) or customer, or both, there will be infrequent and limited periods when sustained voltages outside of the service voltage ranges will occur. Utilization equipment may not operate satisfactorily under these condit ...
Communication Performance over a Gigabit Ethernet Network.
Communication Performance over a Gigabit Ethernet Network.

< 1 ... 141 142 143 144 145 146 147 148 149 ... 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