Power System Protection
... A systematic study of current responsive devices in an electrical power system. ...
... A systematic study of current responsive devices in an electrical power system. ...
EB21805808
... edition, further scaling down has faced serious limits related to fabrication technology and device performances as the critical dimension shrunk down to sub-22 nm range [1]. The limits involve electron tunneling through short channels and thin insulator films, the associated leakage currents, passi ...
... edition, further scaling down has faced serious limits related to fabrication technology and device performances as the critical dimension shrunk down to sub-22 nm range [1]. The limits involve electron tunneling through short channels and thin insulator films, the associated leakage currents, passi ...
The MIT Cables, Terminators, and Hoses
... Since I needed another solid-state amp for the test, I brought home the Chord 1200 so highly recommended by REG in Issue 99. I hooked the Levinson 23 on top and used the Chord to power the subwoofers. Well, this sounded horrible. I couldn’t listen for more than one session—the sound was grainy, stee ...
... Since I needed another solid-state amp for the test, I brought home the Chord 1200 so highly recommended by REG in Issue 99. I hooked the Levinson 23 on top and used the Chord to power the subwoofers. Well, this sounded horrible. I couldn’t listen for more than one session—the sound was grainy, stee ...
RF3196 QUAD-BAND GSM850/GSM900/DCS/PCS POWER AMP MODULE Features
... Building on previous generations of PowerStar® modules, the RF3196 has integrated Power Control with additional features such as VBATT tracking, and a power flattening circuit that reduces power and current variation into mismatch conditions. Theory of Operation The type of power control used in the ...
... Building on previous generations of PowerStar® modules, the RF3196 has integrated Power Control with additional features such as VBATT tracking, and a power flattening circuit that reduces power and current variation into mismatch conditions. Theory of Operation The type of power control used in the ...
FTB 723-1 Equipment Reference Manual P/N # 7917231
... The system consists of a flashhead, power converter, and interconnecting cable. The flashhead is composed of a 400 millimeter plastic lens on a composite plastic base. The lens encloses the flashtube and other flashhead components. The flashhead is usually mounted on an elevated structure. The power ...
... The system consists of a flashhead, power converter, and interconnecting cable. The flashhead is composed of a 400 millimeter plastic lens on a composite plastic base. The lens encloses the flashtube and other flashhead components. The flashhead is usually mounted on an elevated structure. The power ...
ATU900 - Water Solutions
... Data logging, telemetry and local intelligence (sequences) are all combined in the one unit and thus the need for separate outstations and data loggers is reduced. MODBUS, WITSDNP3, AquaCom, FSK and SDI-12 protocols are available to accept input and output data from existing PLCs and intelligent ins ...
... Data logging, telemetry and local intelligence (sequences) are all combined in the one unit and thus the need for separate outstations and data loggers is reduced. MODBUS, WITSDNP3, AquaCom, FSK and SDI-12 protocols are available to accept input and output data from existing PLCs and intelligent ins ...
module02-reviewV2
... • The complexity of the communication task is reduced by using multiple protocol layers: • Each protocol is implemented independently • Each protocol is responsible for a specific subtask • Protocols are grouped in a hierarchy • A structured set of protocols is called a communications architecture o ...
... • The complexity of the communication task is reduced by using multiple protocol layers: • Each protocol is implemented independently • Each protocol is responsible for a specific subtask • Protocols are grouped in a hierarchy • A structured set of protocols is called a communications architecture o ...
Self healing power system by accurate fault location
... Automation helps in cases when there are many faults happening all over the network – it saves control centre’s time to handle other faults ...
... Automation helps in cases when there are many faults happening all over the network – it saves control centre’s time to handle other faults ...
The Standard IEEE 1588
... output is subject of quantization effects as well) Stochastic effects can be filtered out with statistical methods ...
... output is subject of quantization effects as well) Stochastic effects can be filtered out with statistical methods ...
HMMC-5027 2 to 26.5 GHz Medium Power Amplifier
... gate supply (VG1). The recommended bias conditions for the HMMC-5027 are VDD = 8.0 V, IDD = 250 mA or IDSS, whichever is less. To achieve this drain current level, VG1 is typically biased between 0 V and –0.6 V. No other bias supplies or connections to the device are required for 2 to 26.5 GHz opera ...
... gate supply (VG1). The recommended bias conditions for the HMMC-5027 are VDD = 8.0 V, IDD = 250 mA or IDSS, whichever is less. To achieve this drain current level, VG1 is typically biased between 0 V and –0.6 V. No other bias supplies or connections to the device are required for 2 to 26.5 GHz opera ...
High voltage power supplies t in electrostatic applications
... 50Hz to 400Hz at <24V to 480V are common. DC sources ranging from 5V to 300V can also be found. It is critical for the user to understand the input voltage requirement as this will impact overall system use and design. Regulatory agencies such as Underwriters Laboratory, Canadian Standards Associati ...
... 50Hz to 400Hz at <24V to 480V are common. DC sources ranging from 5V to 300V can also be found. It is critical for the user to understand the input voltage requirement as this will impact overall system use and design. Regulatory agencies such as Underwriters Laboratory, Canadian Standards Associati ...
17 GHz RF Front-Ends for Low-Power Wireless Sensor Networks , Member, IEEE
... a transmitter output power of 2 dBm are selected, according to Fig. 3(b), the required receiver noise figure is about 10 dB, and the resulted receiver sensitivity is better than 80 dBm from Fig. 3(a) (i.e., the target in Table I). The strongest possible interferers in the 17 GHz band are most likely ...
... a transmitter output power of 2 dBm are selected, according to Fig. 3(b), the required receiver noise figure is about 10 dB, and the resulted receiver sensitivity is better than 80 dBm from Fig. 3(a) (i.e., the target in Table I). The strongest possible interferers in the 17 GHz band are most likely ...
Simultaneous electrical and optical readout of graphene
... 1. Fabrication of Graphene on Silicon Nitride Drums: 900 nm thick thermal oxide (wet oxide, 980 C) grown on a double-side-polished silicon wafer. This oxide provides electrical isolation and etch isolation from a potassium hydroxide (KOH) etch. Stoichiometric high-stress nitride (60 nm thick) is gr ...
... 1. Fabrication of Graphene on Silicon Nitride Drums: 900 nm thick thermal oxide (wet oxide, 980 C) grown on a double-side-polished silicon wafer. This oxide provides electrical isolation and etch isolation from a potassium hydroxide (KOH) etch. Stoichiometric high-stress nitride (60 nm thick) is gr ...
AN96-07 - Semtech
... The standard defines immunity requirements for ESD which can be coupled into the equipment directly or through radiation. Direct coupling includes any user accessible entry points such as I/O ports, switches, computer keyboards, panel displays, and equipment housings. Radiated coupling results from ...
... The standard defines immunity requirements for ESD which can be coupled into the equipment directly or through radiation. Direct coupling includes any user accessible entry points such as I/O ports, switches, computer keyboards, panel displays, and equipment housings. Radiated coupling results from ...
Show Me the Money!
... – PBB-TE & MPLS-TP Not Necessarily Competing Technologies • PBB-TE good fit for Access and Aggregation • MPLS-TP good fit for Core Transport Portions ©2006 RVW, Inc. ...
... – PBB-TE & MPLS-TP Not Necessarily Competing Technologies • PBB-TE good fit for Access and Aggregation • MPLS-TP good fit for Core Transport Portions ©2006 RVW, Inc. ...
Article 555 Marinas and Boatyards
... Introduction to Article 555—Marinas and Boatyards Water level isn’t constant. Ocean tides rise and fall, while lakes and rivers vary in depth in response to rain. To provide power to a marina or boatyard, you must allow for these variations in water level between the point of use and the power sourc ...
... Introduction to Article 555—Marinas and Boatyards Water level isn’t constant. Ocean tides rise and fall, while lakes and rivers vary in depth in response to rain. To provide power to a marina or boatyard, you must allow for these variations in water level between the point of use and the power sourc ...
Presentation PPT File - RFIC Group @ Fudan University
... synthesizer such as DVB-T • Loop bandwidth changes greatly during a wide frequency range • Wideband VCO needs AFC to select the subband automatically • Low phase noise and low phase error are required in the receiver ...
... synthesizer such as DVB-T • Loop bandwidth changes greatly during a wide frequency range • Wideband VCO needs AFC to select the subband automatically • Low phase noise and low phase error are required in the receiver ...
The Picaxe Hatchet Board
... program Picaxe 08-M microcontroller and several input and output devices which enable it to be used in a variety of ways. I have written 6 different programs for the Hatchet board which are easily customized for personal preferences. Each program tailors the Hatchet board to perform as a useful cont ...
... program Picaxe 08-M microcontroller and several input and output devices which enable it to be used in a variety of ways. I have written 6 different programs for the Hatchet board which are easily customized for personal preferences. Each program tailors the Hatchet board to perform as a useful cont ...
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.