
VSC8476
... function, 16:1 mux/demux and high speed I/O. The VSC8476 also offers an additional data output with programmable preemphasis to enable longer links for copper. With these functions the VSC8476 implements the IEEE 802.3ae and T11 10GFC XGMII Extender Sub-layer (XGXS), Physical Coding Sub layer (PCS), ...
... function, 16:1 mux/demux and high speed I/O. The VSC8476 also offers an additional data output with programmable preemphasis to enable longer links for copper. With these functions the VSC8476 implements the IEEE 802.3ae and T11 10GFC XGMII Extender Sub-layer (XGXS), Physical Coding Sub layer (PCS), ...
5.8 Induction motor losses and efficiency
... For running, the windings are switched to delta-connection. This method of starting is less expensive than by auto transformer. (Wound Rotor) When starting on load is necessary, a wound rotor induction motor must be used. This is because maximum torque at starting ...
... For running, the windings are switched to delta-connection. This method of starting is less expensive than by auto transformer. (Wound Rotor) When starting on load is necessary, a wound rotor induction motor must be used. This is because maximum torque at starting ...
Transformers Electrical transformers are used to transform voltage or
... eddy currents building up in the core. The laminations limit the size of the eddy currents. ...
... eddy currents building up in the core. The laminations limit the size of the eddy currents. ...
Transformers Electrical transformers are used to transform voltage or
... eddy currents building up in the core. The laminations limit the size of the eddy currents. ...
... eddy currents building up in the core. The laminations limit the size of the eddy currents. ...
step-up transformer N2>N1
... eddy currents building up in the core. The laminations limit the size of the eddy currents. ...
... eddy currents building up in the core. The laminations limit the size of the eddy currents. ...
The hAmTX Power Supply
... cheap. Hams like cheap things because that way they can buy more radios, or wire for antennas, or CW keys, or any other things they like. And a computer power supply can be bought in many places of the world, where one cannot find other radio related items. But a computer power supply is very differ ...
... cheap. Hams like cheap things because that way they can buy more radios, or wire for antennas, or CW keys, or any other things they like. And a computer power supply can be bought in many places of the world, where one cannot find other radio related items. But a computer power supply is very differ ...
Poloidal Field Power Supply Systems for the HT
... initiation phase, each PF circuit must contribute initiating plasma. Therefore each of the DC breakers in each power supply must be well synchronized. In the HT-7U power supply, the required current and voltage parameters of the DC circuit breaker are not extremely high, therefore a TDCB associated ...
... initiation phase, each PF circuit must contribute initiating plasma. Therefore each of the DC breakers in each power supply must be well synchronized. In the HT-7U power supply, the required current and voltage parameters of the DC circuit breaker are not extremely high, therefore a TDCB associated ...
BOM Cost Reduction by Removing S3 State white paper
... Estimated BOM Cost Saving Table 3 shows the components that are not required when S3 is removed. It also shows the estimated BOM cost savings with this implementation. Table 3: Components not required when S3 is removed ...
... Estimated BOM Cost Saving Table 3 shows the components that are not required when S3 is removed. It also shows the estimated BOM cost savings with this implementation. Table 3: Components not required when S3 is removed ...
Power Supply - e-Mady
... This type of Smps is normally used in TVs and VCRs. It is relatively simple and cheap since it dies not need any output choke. But it has poor regulations and high ripple content in output. Forward mode SMPS Forward mode Smps units are used in devices requiring 100 to 200 watts of output power and g ...
... This type of Smps is normally used in TVs and VCRs. It is relatively simple and cheap since it dies not need any output choke. But it has poor regulations and high ripple content in output. Forward mode SMPS Forward mode Smps units are used in devices requiring 100 to 200 watts of output power and g ...
WP353 - Seven Steps to an Accurate Worst-Case Power Analysis Using Xilinx Power Estimator
... completing these steps, analyze the results. Make sure the junction temperature is not exceeded and the power drawn is within the desired budget for the project. If the thermal dissipation or power characteristics are not within targets, adjustments should be made to either the environmental charact ...
... completing these steps, analyze the results. Make sure the junction temperature is not exceeded and the power drawn is within the desired budget for the project. If the thermal dissipation or power characteristics are not within targets, adjustments should be made to either the environmental charact ...
2010 B1 Session Questionnaire ( doc , 67 kB ) - SC B1
... Group Meeting SC B1 Insulated Cables, 24th August, 2010 Questionnaire Please return completed Questionnaire at the exit of the meeting room or send it before 30th September, 2010 to : E Bergin (Convenor, Customer Advisory Group, Study Committee B1) ...
... Group Meeting SC B1 Insulated Cables, 24th August, 2010 Questionnaire Please return completed Questionnaire at the exit of the meeting room or send it before 30th September, 2010 to : E Bergin (Convenor, Customer Advisory Group, Study Committee B1) ...
Quantitative Analysis of Reactive Power Calculations for Small
... I. INTRODUCTION n linear circuits, with sinusoidal voltages and currents, active, reactive and apparent power are correlated with well-known quadratic formula: S 2 P 2 Q 2 . When nonlinear loads are present one should introduce new quantities in the calculations emanated by the harmonics and relat ...
... I. INTRODUCTION n linear circuits, with sinusoidal voltages and currents, active, reactive and apparent power are correlated with well-known quadratic formula: S 2 P 2 Q 2 . When nonlinear loads are present one should introduce new quantities in the calculations emanated by the harmonics and relat ...
IOSR Journal of Applied Physics (IOSR-JAP)
... Working principles of the designed automatic three phase selector If the phase selector is connected to the main power supply say, red phase R; it is stepped down by transformer X1 to deliver 12 V, 300mA, which is ratified by diode D1 and filtered by capacitor C1 to produce the operating voltage for ...
... Working principles of the designed automatic three phase selector If the phase selector is connected to the main power supply say, red phase R; it is stepped down by transformer X1 to deliver 12 V, 300mA, which is ratified by diode D1 and filtered by capacitor C1 to produce the operating voltage for ...
William Stallings Data and Computer Communications
... Interaction between end system on ATM and end system on legacy LAN Interaction between stations on legacy LANs of same type Interaction between stations on legacy LANs of different types ...
... Interaction between end system on ATM and end system on legacy LAN Interaction between stations on legacy LANs of same type Interaction between stations on legacy LANs of different types ...
MPA591-5 AC power supply.indd
... Never unplug the motor from the SMC or Power Master while the system is operating. Doing so could result in damage to either the SMC, Power Master or AC Power Supply. ...
... Never unplug the motor from the SMC or Power Master while the system is operating. Doing so could result in damage to either the SMC, Power Master or AC Power Supply. ...
MurrayLink, the longest underground HVDC cable in the
... converter stations was performed in a period of 4-6 weeks, most of which was completed in parallel with the installation. This short period was possible due to the modular design of the converter subsystems and pre-testing in the factory. The converter terminal tests and the transmission tests comme ...
... converter stations was performed in a period of 4-6 weeks, most of which was completed in parallel with the installation. This short period was possible due to the modular design of the converter subsystems and pre-testing in the factory. The converter terminal tests and the transmission tests comme ...
Home Networking And Flying Cars
... content anywhere in their home, while the content owner can rest assured that the content is not being sent over the Internet inadvertently or illegally. All of this is invisible to the user, of course. The important thing is that the connection is guaranteed, synchronized and secure. Part 3: FCP a ...
... content anywhere in their home, while the content owner can rest assured that the content is not being sent over the Internet inadvertently or illegally. All of this is invisible to the user, of course. The important thing is that the connection is guaranteed, synchronized and secure. Part 3: FCP a ...
Slide 1
... operation into a 1:1 VSWR. The Class-B PA operated at 71% efficiency, while the Class-E PA operated at 92% efficiency. The performance of the Class-B and –E circuits were then compared over eight points on a 2:1 VSWR circle. ...
... operation into a 1:1 VSWR. The Class-B PA operated at 71% efficiency, while the Class-E PA operated at 92% efficiency. The performance of the Class-B and –E circuits were then compared over eight points on a 2:1 VSWR circle. ...
Stresa, Italy, 26-28 April 2006
... turns increases the induced voltage proportionately but also increases the self inductance of the coil at something close to the square of the number of turns. A high inductance requires a long conduction period to reach the value of current corresponding to optimal damping, and this can lead to hig ...
... turns increases the induced voltage proportionately but also increases the self inductance of the coil at something close to the square of the number of turns. A high inductance requires a long conduction period to reach the value of current corresponding to optimal damping, and this can lead to hig ...
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.