
Development of Compound Semiconductor Devices— In Search of
... should be grown successively in order to form semiconductor devices with various characteristics. These structures with two different semiconductors are called a hetero-junction, and the method of crystal growth of semiconductor with very few defects is called epitaxial growth method (epitaxy). The ...
... should be grown successively in order to form semiconductor devices with various characteristics. These structures with two different semiconductors are called a hetero-junction, and the method of crystal growth of semiconductor with very few defects is called epitaxial growth method (epitaxy). The ...
Spirent Journal of IEEE 802.3ba 40/100 GB Ethernet PASS
... aggregation protocols, bandwidth growth at the edge of the network, and the rise of for-pay services like HD IPTV, VoIP, cloud computing, and cloud storage. The 100 GB delivery test requirements are different than previous 1 GB and 10 GB because of the strong emphasis placed on QoS/CoS, realism, sta ...
... aggregation protocols, bandwidth growth at the edge of the network, and the rise of for-pay services like HD IPTV, VoIP, cloud computing, and cloud storage. The 100 GB delivery test requirements are different than previous 1 GB and 10 GB because of the strong emphasis placed on QoS/CoS, realism, sta ...
MSP430 Isolated FET Interface
... interface design needs to be extended to additionally support the JTAG TEST signal from the PC to the MSP430. Either one more ISO150 coupler or a single channel optical coupler could be used for supporting this function. During operation, the PC side of the interface operates three channels in trans ...
... interface design needs to be extended to additionally support the JTAG TEST signal from the PC to the MSP430. Either one more ISO150 coupler or a single channel optical coupler could be used for supporting this function. During operation, the PC side of the interface operates three channels in trans ...
Appendix A Decibels
... 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 ...
... 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 ...
designing an uninterruptible power supply based on the high
... allows to keep DC link and output voltage stable under input voltage and load variations, that ripple of Dc link is less than 1.5%. Moreover, the control scheme reduced transience time. The suggested converter is expected to be a good candidate for a standalone UPS, and PV ...
... allows to keep DC link and output voltage stable under input voltage and load variations, that ripple of Dc link is less than 1.5%. Moreover, the control scheme reduced transience time. The suggested converter is expected to be a good candidate for a standalone UPS, and PV ...
SIM808 Hardware Design
... General Notes SIMCom offers this information as a service to its customers, to support application and engineering efforts that use the products designed by SIMCom. The information provided is based upon requirements specifically provided to SIMCom by the customers. SIMCom has not undertaken any ind ...
... General Notes SIMCom offers this information as a service to its customers, to support application and engineering efforts that use the products designed by SIMCom. The information provided is based upon requirements specifically provided to SIMCom by the customers. SIMCom has not undertaken any ind ...
User Instructions DP-DMX20L
... voltage in your area matches the required voltage for your LSC® DPDMX512 DMX20L.™ The DP-DMX20L™ is available in a 115v and ...
... voltage in your area matches the required voltage for your LSC® DPDMX512 DMX20L.™ The DP-DMX20L™ is available in a 115v and ...
Design and Development of Wireless Sensor Node
... 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 ...
... 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 ...
AirLive AC.TOP Manual
... The AC.TOP is a ceiling mount wireless multi-function AP based on 1200Mbps 2T2R Wireless AC+ b/g/n MIMO standard radio technologies. It is 2.4G/5G dual band concurrent. The Wireless Access Point is equipped with one Gigabit Auto-sensing Ethernet ports for connecting to LAN and also for cascading to ...
... The AC.TOP is a ceiling mount wireless multi-function AP based on 1200Mbps 2T2R Wireless AC+ b/g/n MIMO standard radio technologies. It is 2.4G/5G dual band concurrent. The Wireless Access Point is equipped with one Gigabit Auto-sensing Ethernet ports for connecting to LAN and also for cascading to ...
Document
... A stand-alone inverter that can inject energy into the grid would be considered a multiple-mode inverter. ...
... A stand-alone inverter that can inject energy into the grid would be considered a multiple-mode inverter. ...
MAX13174E +5V Multiprotocol, Pin-Selectable Cable Terminator General Description
... Note 2: All parameters tested at a single temperature. Specifications over temperature are guaranteed by design. Note 3: M[x] is the input bus DCE/DTE, M2, M1, M0. ...
... Note 2: All parameters tested at a single temperature. Specifications over temperature are guaranteed by design. Note 3: M[x] is the input bus DCE/DTE, M2, M1, M0. ...
Dimensioning of electrical installations Calculation softwares examined
... 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 ...
... 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 ...
CoolRunner-II Demo Board Summary
... 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 ...
... 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 ...
IF 1546 Revision 1
... precaution, exercise extreme caution at all times when you expose circuits and components, and when you operate, maintain, or service this equipment. ...
... precaution, exercise extreme caution at all times when you expose circuits and components, and when you operate, maintain, or service this equipment. ...
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.