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leakage power analysis and reduction for nanoscale circuits
leakage power analysis and reduction for nanoscale circuits

Instantaneous Reactive Power and Power Factor of
Instantaneous Reactive Power and Power Factor of

... The second harmonic of the instantaneous phasor can be obtained through a second-order-harmonic band pass filter. Since only zero crossing points of the second harmonic are of interest, a low-Q filter that normally has fast response is good enough. The positive and negative peaks of the second harmo ...
4 Surge Mitigation Functions
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... This form of surge mitigation operates by limiting (clipping) surge amplitudes that exceed a predetermined threshold value to values either close to that of the threshold or much lower than the threshold. Surge mitigation controlled by an integrated circuit (IC) and a power element can be multimode. ...
POWER METER PW3336, PW3337
POWER METER PW3336, PW3337

... 2 IEC61000-4-7 compliant harmonic measurement 3 Large selection of interfaces The PW3336/PW3337 supports measurement that complies with IEC 61000-4-7:2002, the international standard governing harmonic measurement. The power meters can measure voltage, current, and power harmonics up to the 50th ord ...
12-pulse applications
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... 12-pulse series connection: controlled converter + uncontrolled converter............................................................ 18 ...
Transients are Unwanted House Guests!
Transients are Unwanted House Guests!

... •Extremely low dynamic resistance (RDYN) of 0.15Ω •Low capacitance from I/O to GND (3.8pF @ 0V DC bias, 1.7pF @ Vcc=5V, VI/O=2.5V) •Robust surge protection (Lightning, IEC61000-4-5, 20A (tP=8/20µs); Peak pulse power, 400W (tP=8/20µs)) •Enhanced ESD capability (IEC61000-4-2, ±30kV contact, ±30kV air) ...
Aalborg Universitet
Aalborg Universitet

... (CM) [27] inductor for each VSC can be used as a circulating current filter (Fig. 1). Assuming strong magnetic coupling in the circulating current filter, the flux linkage in the core due to the line current can be neglected. Therefore, the flux linkage has only the high frequency components determi ...
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D43052327

... electromagnetic force is created when a DC current is applied to the coil and actuates the membrane . The third type is the electro-thermal RF MEMS switch. In this the bending of the structure depends on the thermal expansion coefficient of materials. Thermal actuators utilizes the property of therm ...
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... Protocols used to transfer the data Topology of the network Congestion level in the network Speed and current workload of the computers Time of day (# of active concurrent users) ...
energy recovery flip-flops and resonant clocking of sccer flip
energy recovery flip-flops and resonant clocking of sccer flip

... Abstract: This paper indicates the four novel low power flip-flops collectively called novel energy recovery flipflops to reduce the power dissipation in a clock network. The energy recovery clocked flip-flops enable energy recovery from the clock network, resulting in significant energy saving. The ...
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... Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the Electrical Characteristics. The ensur ...
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... alter the grid structure and jeopardize safe and reliable operation [4]. These are only a few of the issues caused by the connection of DGs to grids. In order to tackle them a new concept called “Microgrid” is proposed. A microgrid is a collection of loads and microgenerators along with some local s ...
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hybrid zigbee rfid for detection of active tags and energy minimization

... Zigbee is a wireless communication technology which aims at providing reliable, cost-effective, low-power, wireless monitoring and tracking objects. Zigbee uses IEEE 802.15.4 as the communication standard. Zigbee is suitable for applications that require reliable low data rate within a short range. ...
DFIG-Steady state
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... For each mode, we may use the three relations to track the sign Ps, ωr, and Pr from the signs of Tem and s. For example, for mode 2, Tem<0Ps<0 and Tem<0, s<0 ωr<0Pr<0 Focusing on the generator modes, we observe the standard induction machine generating mode, supersynchronism, where ωm>ωs (mode 2) ...
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Super Barrier Rectifier—A New Generation of Power Diode

... verse current is typical of p-i-n diode, where reverse current con­ sists of the constant injection and growing ionization currents. As an example, the actual 10 A 100 V SBR diode with VF = 0.72 V, the leakage current was found to be less than 50 nA, outperforming Schottky diodes that have much high ...
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... The TPA2035D1 is a 2.75-W high efficiency filter-free class-D audio power amplifier in an approximately 1.5-mm × 1.5-mm wafer chip scale package (WCSP) that requires only one external component. The pinout is the same as the TPA2010D1 (SLOS417) except that the external gain setting input resistors r ...
SDIO101A 1. General description SD/SDIO/MMC/CE-ATA host controller
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... supply voltage. The SD/SDIO/MMC/CE-ATA port can operate at a wide voltage range (1.8 V to 3.6 V) which allows the device to interface to a large variety of SD, SDIO, MMC or CE-ATA devices. The SDIO101A allows 1-bit and 4-bit SD transactions and 8-bit MMC/CE-ATA transactions. The 16-bit asynchronous ...
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LCM600 Series - Artesyn Embedded Technologies
LCM600 Series - Artesyn Embedded Technologies

... The LCM600 series output power density is 7.41W per cubic inch. Like other power supplies. The power supply comes equipped with variable speed “smart” fans supported by integrated controls to enhance reliability and achieve even higher levels of energy efficiency. The LCM600 series are equipped with ...
10 kW Contactless Power Transfer System for Rapid Charger of
10 kW Contactless Power Transfer System for Rapid Charger of

... In a contactless power transfer system with a series resonant capacitor, the primary terminal voltage increases with increasing power. This overvoltage may lead to the problem of breakdown voltage of capacitor and the breakdown of winding insulation. To prevent such an overvoltage occurring, it is s ...
Meta-parametrised meta-modelling approach for
Meta-parametrised meta-modelling approach for

... indicators is identified. The approach does not identify a unique solution; instead, several solutions are obtained and other criteria can be used to choose the final solution, thus giving freedom in the design process and flexibility in the final decisions of conceptual design. The proposed method is a ...
UltraZed I/O Carrier Card
UltraZed I/O Carrier Card

... the Avnet UltraZed System On Module (SOM) module(s). This carrier card provides all of the necessary power, clock, reset control and SoC I/O pin accessibility through the JX1, JX2, and JX3 MicroHeaders. To reduce the product-to-market development cycle the carrier card provides the following interfa ...
abb corporate b-roll 2006
abb corporate b-roll 2006

... tons per year. ABB supplied a high-voltage power conversion station as well as control and protection systems (System 800xA, SCADA) and electrical equipment for the plant. The high power converters at Qatalum (also known as rectiformers) are the biggest and most powerful ever built. Rectiformers are ...
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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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