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LESAT
LESAT

... • LESAT - Lightning Effects Structure Analysis Tool – Computational methodology implemented in MATLAB to analytically predict actual transient current levels and voltages on aircraft wiring and structural elements. – Assists designers in protecting aircraft against the indirect effects of lightning ...
CPLD Application Training
CPLD Application Training

... Power consumption basics of CMOS devices Calculating power in CoolRunner XPLA3 CPLDs Assumptions for XPLA3 CPLDs in XPower CoolRunner XPLA3 power model in XPower Rank of power consuming nets in XPLA3 CPLDs Activity rates Data entry methods Improving accuracy of XPLA3 power estimation Macrocell confi ...
Comparison of PI and ANN Control Techniques for Nine
Comparison of PI and ANN Control Techniques for Nine

LCM-40(DA), LCM-60(DA) installation manual
LCM-40(DA), LCM-60(DA) installation manual

... Built-in active PFC Output current level selectable by DIP switch Built-in DALI interface and push dimming function (DA version) Built-in 0~10Vdc and PWM signal dimming function (Non-DA version) Power supply synchronization function up to 10 units Temperature compensation function by external NTC ...
StatCom
StatCom

Aalborg Universitet Abulanwar, El-Saye Mohamed; Chen, Zhe; Iov, Florin
Aalborg Universitet Abulanwar, El-Saye Mohamed; Chen, Zhe; Iov, Florin

HMC384LP4 数据资料DataSheet下载
HMC384LP4 数据资料DataSheet下载

... The HMC384LP4 & HM384LP4E are GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs with integrated resonators, negative resistance devices, varactor diodes, and buffer amplifiers. The VCO’s phase noise performance is excellent over temperature, shock, vibration and process due to the oscilla ...
Frequency dependence of inductance
Frequency dependence of inductance

... - materials without crystalline structure - production: very fast cooling of hot liquid alloy (melt), rolling into tin foils - properties: better than sheets, low power losses, maximum of magnetic ...
Data sheet Shirla All in one - fully automatic cable sheath testing
Data sheet Shirla All in one - fully automatic cable sheath testing

... Analyses are done automatically and the results are displayed digitally. For cable fault pin pointing according to the step voltage method, shirla applies a defined DC pulse pattern and the step voltage can be picked up by using the KMF1 or UL receiver set. ...
2212 Contrec Avtrac DataSheet
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... circuit which will accept pulse or frequency flow signals generated by turbine, positive displacement, paddlewheel or other flowmeters. ...
Power and automation products and services Global product
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Variable Speed Pool Pump Measure
Variable Speed Pool Pump Measure

... Variable Speed Pump allows programming for four different speeds for different pool, spa or water features applications. By dialing in the minimum speed required for a task, the pump works less and uses less energy. Pump speeds are easily adjusted with the push of an up or down arrow button. An Eco ...
Research Journal of Applied Sciences, Engineering and Technology 7(2): 388-395,... ISSN: 2040-7459; e-ISSN: 2040-7467
Research Journal of Applied Sciences, Engineering and Technology 7(2): 388-395,... ISSN: 2040-7459; e-ISSN: 2040-7467

NCV890204 2.0 A, 2 MHz Automotive Buck Switching Regulator with Programmable Spread
NCV890204 2.0 A, 2 MHz Automotive Buck Switching Regulator with Programmable Spread

... suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890204 is capable of converting the typical 4.5 V to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the se ...
1 - Mirus International
1 - Mirus International

... .1 As a standard feature, the HMRP shall come equipped with an HF3579 Passive Harmonic Filter. The filter shall be rated for the continuous duty maximum full load rating of the HMRP. .2 The HF3579 shall be designed to filter out the majority of the 3rd, 5th, 7th and 9th harmonic currents generated b ...
Motors and Generators
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...  Turns of wire wound onto the armature – the ends of the coils are connected to bars on the commutator  Role: Provides the torque as the current passing through the coils interacts with the magnetic field. Any torque acting on the coils is transferred to the rotor (which the coils are mounted on) ...
Soft-Switching Full-Bridge PWM DC–DC
Soft-Switching Full-Bridge PWM DC–DC

... to transform high frequency voltage of the inverter. The secondary winding of the high-frequency step-down power transformer Tr is connected through a controlled rectifier consisting of series connection of MOSFET and diode (T5 , D5 ; T6 , D6 ) to the output filter. The output filter consisting of s ...
MP3900DK-LF-Z Datasheet
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... current rating. Use a capacitor with RMS current rating greater than the inductor ripple current (see Selecting the Inductor to determine the inductor ripple current). In addition, a smaller high quality ceramic 0.1μF~1µF capacitor may be placed to absorb the high frequency noise. If using this tech ...
Modeling and Control of the PFC Stage for a 50KW EV Fast
Modeling and Control of the PFC Stage for a 50KW EV Fast

... drawing the power from the three phase AC utility grid and injecting it into the traction battery. In order to provide a feasible solution, the FC must satisfy both the grid code in terms of THD and power factor from the utility side and lithium-ion charging modes from the battery side. Since the BS ...
I INTERMEDIATE ROBOTS Building a Laptop-
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... such that if the laptop ever stopped communicating, the PIC would cut the power to the motors automatically. The quickest and cheapest way to implement this was a “poor man’s” AND gate, using two readily available 2N2222A switching transistors to enable a small reed relay. As you can see from the de ...
R es is tors - M ed iu m - to F as tR eac tin g F use
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... Designed for overload protection at constant voltage Medium- to fast-reacting fuse ...
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... LVPECL and PECL are both offshoots of the older ECL technology first introduced in the 1960s. PECL stands for Positive Emitter Coupled Logic as it operates off a positive voltage such as 5, 3.3V or 2.5V. PECL logic outputs are commonly used in high-speed clock distribution circuits. As a differentia ...
TLX9000
TLX9000

... • Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information in this document, and related hardware, software and systems (collectively "Product") without notice. • This document and any information herein may not be reprod ...
DC Generators
DC Generators

... material, usually copper, separated by an insulating material. Each half of the commutator segments is permanently attached to one end of the rotating loop. Brushes usually made of carbon, slides along the commutator as it rotates so the brushes make contact with each end of the loop. Each brush sli ...
Compact Power Line Shelves Features Description
Compact Power Line Shelves Features Description

... • The DC output is not provided with a fuse or circuit breaker suitable for branch circuit protection. Therefore, the power shelf should be mounted in the same rack or cabinet as the equipment being powered. Use interconnecting power cables suitable for the application and sized to carry the rated o ...
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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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