• 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
TB426: Characterization of the Output Protection Circuitry of
TB426: Characterization of the Output Protection Circuitry of

... driving full rate ADSL signals at very low power dissipation. The high drive capability of 450mA makes this driver ideal for both CAP and DMT designs. It contains two pairs of wideband, high-voltage, current mode feedback amplifiers optimized for low power consumption in DSL systems. ...
3.4 Poloidal Field Power Supply Systems for the EAST Steady State
3.4 Poloidal Field Power Supply Systems for the EAST Steady State

... When the coil current is below the 10% level, the converters operate in the four-quadrant mode, in which only G11, G31, G22, and G42 operate. This operation mode of the PF converters can save half of the capacity of the required transformer, and also ensure that the load current crosses zero smoothl ...
ACDSee HP Version print job
ACDSee HP Version print job

... load. A reference voltage applied to an ideal reference load will generate sinusoidal and balanced currents, in phase with voltages. Anything which produces a no conformity respect to these reference conditions, supposes a poor electric power quality. Moreover, all the compensation devices must achi ...
1- Harmonic Sources from Commercial Loads
1- Harmonic Sources from Commercial Loads

... electronic equipment. Nonlinear industrial loads can generally be grouped into three categories: three-phase power converters, arcing devices, and ...
Slide 1
Slide 1

... • Port 2 Interrupt used for Voltage Supervisor – can be shared • Port 3 for debugging (no interrupt capability) • 2 Timer counter interrupts (one used for communication) • Used 4 pins total out of 24 GPIO ...
Application for Fault Location in Electrical Power Distribution
Application for Fault Location in Electrical Power Distribution

CM Technical Information Guide
CM Technical Information Guide

Welcome to AntennaSelect How a slot antenna works
Welcome to AntennaSelect How a slot antenna works

... implies; RF power from the input port is divided between two or more output ports, at specific power division ratios. There are two major types of broadcast antenna power dividers that we will look at in this article; isolated power dividers and nonisolated dividers, such as so-called "matched tees" ...
Power Supply Wattage
Power Supply Wattage

... storage devices are susceptible to data loss or hardware damage that can be caused by the sudden loss of power. • To protect against this, the use of an Uninterruptible power supply or UPS can provide a constant flow of electricity in the event that a primary power supply becomes unavailable for a s ...
Volume 7, Issue 2, March-April, 2016, pp.59–68, Article ID: IJEET_07_02_007 http://
Volume 7, Issue 2, March-April, 2016, pp.59–68, Article ID: IJEET_07_02_007 http://

... online in a control system, and predict unarranged time series. It is basically a hybrid neural-fuzzy technique that brings us the neural networks learning capabilities to fuzzy inference systems. The learning algorithm provides us the membership functions of a Sugeno-type Fuzzy Inference System by ...
EMC VNX VG8 GATEWAY
EMC VNX VG8 GATEWAY

... VNX Plug-in for VMware—For provisioning, management, cloning, and deduplication ...
Ten Recommendations to Help Design for Intrinsic Safety
Ten Recommendations to Help Design for Intrinsic Safety

... The maximum surface temperature of components under fault conditions must be assessed for determining the appropriate temperature class of an intrinsically safe device. To determine the maximum surface temperature of these components analytically, you’ll need information on the components’ temperatu ...
DC power system stability
DC power system stability

ch03.ppt
ch03.ppt

... • Form factor: specifies size, shape, features of device • Motherboard, power supply, and case share the same form factor, such as ATX • Three types of cases: desktop, tower, and notebook • Quantities that characterize electricity: voltage, current, resistance, and power • Current flows from hot wir ...
Power Semiconductor Devices
Power Semiconductor Devices

... For a time instant, there are 2 possible conduction states: – Each phase has a thyristor conducting. Load voltages are the same as the source voltages. – There are only 2 thyristors conducting, each from a phase. The load voltages of the two conducting phases are half of the corresponding line to li ...
Garage Parking Indicator - ECpE Senior Design
Garage Parking Indicator - ECpE Senior Design

... in a circuit at regular intervals. (Alternating Current) DC – An electric current flowing in one direction only. (Direct Current) Power Adaptor – Converts AC voltage to DC voltage Laser - A device that produces a very narrow, highly concentrated beam of light. ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... changing shading conditions. Even if at some instant one could know where the global maximum is, it would probably change before it was possible to shift the MPP tracker to that operating point. In other words, very fast tracking speeds and good control stability are particularly required for a MPP ...
Article  - Journal of Ecological Engineering
Article - Journal of Ecological Engineering

... This paper presents an unconventional view on power electronic converters control as an important factor in environmental protection. Two distinct features that are provided by the control system, namely harmonics elimination and Fault Ride-Through are addressed herein. The paper provides the discus ...
Glitch Removal www.AssignmentPoint.com Glitch Removal is the
Glitch Removal www.AssignmentPoint.com Glitch Removal is the

R131 DGPS Receiver - Bruttour International
R131 DGPS Receiver - Bruttour International

P-6900 AR E True RMS Voltage Regulator
P-6900 AR E True RMS Voltage Regulator

... Fortunately, Furman’s Prestige range of AC power management products have been manufactured and designed to a higher standard. With technologies such as our non-sacrificial SMP surge suppression, the equipment rack will be protected - as well as the Furman itself. No service call. No down time. Stab ...
Section 26 05 05 High Voltage Cables
Section 26 05 05 High Voltage Cables

Overlapping Neutral
Overlapping Neutral

... absence of any significant transient overvoltages or overcurrents at the loads in question. ...
B235-12083
B235-12083

... from dangerous overvoltage conditions. The strong, extra-high energy UX arresters provide two very important functions for this application. First, the arrester serves as a voltage controlled switch to clamp the voltage below 2.0 PU based on the ITIC* curve, which is a voltage tolerance curve applic ...
fast voltage stabilty index based optimal reactive power
fast voltage stabilty index based optimal reactive power

... minima.The rapid development of power electronics technology provides exciting opportunities to develop new power system equipment for better utilization of existing systems. This Article Presents an application of Fast Voltage Stabilty Index(FVSI) to identify the weak buses for the RPP problem usin ...
< 1 ... 403 404 405 406 407 408 409 410 411 ... 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