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Tech Brief 1 MicroLAN Design Guide
Tech Brief 1 MicroLAN Design Guide

AN 574: Printed Circuit Board (PCB) Power Delivery Network
AN 574: Printed Circuit Board (PCB) Power Delivery Network

... at the FEFFECTIVE frequency reported by the tool. As shown in the following example, over-designing the PCB by adding capacitors with a SRF beyond FEFFECTIVE results in additional build of materials (BOM) cost without performance improvements. Two designs (A are B) are studied. All the parameters of ...
Energy Measuring Unit EcoMonitorLight Series
Energy Measuring Unit EcoMonitorLight Series

... seconds and the equipment operating time can be displayed in hours (h) in order to utilize the data in diagnosing production equipment service life and for ...
3 mW, 100 kSPS, 16-Bit ADC in 6-Lead SOT-23 AD7680
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... Power Supply Input. The VDD range for the AD7680 is from 2.5 V to 5.5 V. Analog Ground. Ground reference point for all circuitry on the AD7680. All analog input signals should be referred to this GND voltage. Analog Input. Single-ended analog input channel. The input range is 0 V to VDD. Serial Cloc ...
Single-Chip HID USB to SMBus Master Bridge CP2112 Data Sheet
Single-Chip HID USB to SMBus Master Bridge CP2112 Data Sheet

... oscillator, and a one-time programmable ROM in a compact 4 x 4 mm QFN-24 package (sometimes called “MLF” or “MLP”). The on-chip, one-time programmable ROM provides the option to customize the USB Vendor ID, Product ID, Manufacturer Product String, Product Description String, Power Descriptor, Device ...
AUS Word Document
AUS Word Document

LVPECL / LVDS Termination - Integrated Device Technology
LVPECL / LVDS Termination - Integrated Device Technology

... AC coupling can be used to terminate LVPECL signals through 50Ω to the test equipment GND. In this configuration, capacitors are used to split the DC and AC components of the LVPECL output. A resistor (R1) terminated to GND provides the LVPECL emitter follower output stage with the required DC path ...
Energy Measuring Unit EcoMonitor Light
Energy Measuring Unit EcoMonitor Light

UCC27517A Single-Channel High-Speed Low
UCC27517A Single-Channel High-Speed Low

CoolRunner-II CPLD Family Data Sheet
CoolRunner-II CPLD Family Data Sheet

... CPLD families use a sense amplifier approach to creating product terms, which always has a residual current component being drawn. This residual current can be several hundred milliamps, making them unusable in portable systems. CoolRunner-II CPLDs use standard CMOS methods to create the CPLD archit ...
Optimal Design for Resonant Power Transformer
Optimal Design for Resonant Power Transformer

... transformer. It somewhat differs from the common study of the hard switching transformer, as we all know the conduction loss equal core loss such that its output power performance can meet the optimal required. But we design a resonant transformer of the essentials are considered in detailed discuss ...
BCIT Facilities and Campus Development : : Electrical
BCIT Facilities and Campus Development : : Electrical

... This document contains standards that are the minimum requirements for BCIT construction projects. The information in the document is organized using the MasterFormat® and SectionFormat® systems. It is not a specification; it is intended to supplement the Consultant's own documents. Do not use this ...
OMRON - Information: Détection de marques et de couleurs
OMRON - Information: Détection de marques et de couleurs

... AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles - Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : [email protected] ...
SKY12210-478LF: 0.9 to 4.0 GHz, 100 W High Power Silicon PIN
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... Charged Device Model (CDM), Class 4 Human Body Model (HBM), Class 1C Machine Model (MM), Class B ...
Spec Sheet - PENTAIRPRoTECT.CoM
Spec Sheet - PENTAIRPRoTECT.CoM

... Disconnects are located by dimension E1. Wiring space W1 is available when disconnect is installed in the enclosure. See the Hoffman Specifier’s Guide Technical Information chapter for E1 Spacing by Enclosure Height for various disconnect switch manufacturers. Refer to National Electrical Code ® 200 ...
Personal Area Networks: Bluetooth or IEEE 802.11? | SpringerLink
Personal Area Networks: Bluetooth or IEEE 802.11? | SpringerLink

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... The patented DataGATE technology was developed to permit a straightforward approach to additional power reduction. Each I/O pin has a series switch that can block the arrival of free running signals that are not of interest. Signals that serve no use may increase power consumption, and can be disabl ...
MAX3816A.pdf
MAX3816A.pdf

... desired (noncompliant VOL from displays and noncompliant VIH from sources are common). Further, the parallel mode can be operated with other speed-up devices on the same bus, either active (DRVR_EN = HI) or in bypass (DRVR_EN = LO). Series mode is preferred for applications where high tolerance to g ...
How to Build a Low-Cost, Extended-Range RFID Skimmer Ilan Kirschenbaum Avishai Wool Abstract
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... Attacks on RFID Systems Using Other Standards ...
fault location calculation based on two terminal
fault location calculation based on two terminal

... Transmission lines are a critical segment of a power system. They sometimes experience. Faults such as short circuits to ground and between phases. This primarily happens due to insulation failure caused by atmospheric disturbances. Therefore, a line protection scheme is essential to any electrical ...
Appendix D-4  Electrical Advanced-Level Training Issue Date:  12/29/11
Appendix D-4 Electrical Advanced-Level Training Issue Date: 12/29/11

... A standard may be defined as a document that applies collectively to codes, specifications, recommended practices, test methods, and guides, which have been prepared by a standards developing organization or group, and published in accordance with established procedures. Standards promote safety, re ...
VX / MX Dimmer Manual
VX / MX Dimmer Manual

Macro-Tech 2402 - HARMAN Professional Solutions
Macro-Tech 2402 - HARMAN Professional Solutions

... protection circuitry to keep the show going long after other amplifiers have shut down. And with its PIP™ expandability, the amplifier can be easily customized with one of our many optional input modules (see Section 5 for a list of available PIPs). Modern power amplifiers are sophisticated pieces o ...
95C-10939—11 - ML6984, ML7984 Series 4000 Direct Coupled
95C-10939—11 - ML6984, ML7984 Series 4000 Direct Coupled

AN60 - PCMCIA Card and Card Socket Power
AN60 - PCMCIA Card and Card Socket Power

< 1 ... 65 66 67 68 69 70 71 72 73 ... 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.
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