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W. Rieutort-Louis, J. Sanz-Robinson, T. Moy, L.C. Huang, Y.Z. Hu, Y. Afsar, J.C. Sturm, N. Verma, S. Wagner, "Integrating and Interfacing Flexible Electronics in Hybrid Large-Area Systems", IEEE Trans. Components Packaging Manufacturing Tech. Vol. 5, pp. 1219-1229 (2015).
W. Rieutort-Louis, J. Sanz-Robinson, T. Moy, L.C. Huang, Y.Z. Hu, Y. Afsar, J.C. Sturm, N. Verma, S. Wagner, "Integrating and Interfacing Flexible Electronics in Hybrid Large-Area Systems", IEEE Trans. Components Packaging Manufacturing Tech. Vol. 5, pp. 1219-1229 (2015).

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... attenuator gains are smaller than 1. Although the attenuator exhibits a loss, we can still refer to it as a gain as long as the gain ratio is smaller than 1. The gains in our examples have so far been simple numbers such as 5, or 10, or 0.5. In a real communications system, however, the gains might ...
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... The DS18S20 communicates over a 1-wire bus that by definition requires only one data line (and ground) for communication with the µc. Each DS18S20 has a unique 64-bit serial code, which allows multiple DS18S20s to function on the same 1-Wire bus, thus it is simple to use one pin of µc to control man ...
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... Dimensioning electrical installations can sometimes be tough and time consuming, especially in extensive installations that may include several motors, transformers or generators. Those who plan electrical installations must also be able to provide their customers with professional documentation. My ...
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... LCD Displays The primary display on the demo board is a custom display fabricated specifically for operation at 1.8V drive levels. Each operable visual item in the display is a separate LCD segment which is driven directly by the CPLD. To properly drive an LCD such as this one, the CPLD provides a r ...
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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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