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DESCRIPTION
DESCRIPTION

... Pulse Generators are designed to be compatible with the accessory mounting provisions of most DC motors. Both stub shaft and through shaft mountings are accommodated for motor frame sizes from 180 through 500. This space saving design eliminates the need for costly adapters and shaft couplings. It n ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

Aalborg Universitet Improved control strategy for the three-phase grid-connected inverter
Aalborg Universitet Improved control strategy for the three-phase grid-connected inverter

Smart Solution for Railway Signalling Infrastructure
Smart Solution for Railway Signalling Infrastructure

... In case of “double cross feeding”, this MV network also enabled so called privilege feeding, which increases reliability significantly. The 3.2 kV cubicles used since 1950 are called “BACA”. Two types of cubicles are used. One indoor style, the other one outdoor style, which is the most common model ...
A Reconfigurable Uninterruptible Power Supply System for Multiple Power Quality Applications
A Reconfigurable Uninterruptible Power Supply System for Multiple Power Quality Applications

HCF4066B QUAD BILATERAL SWITCH FOR TRANSMISSION OR
HCF4066B QUAD BILATERAL SWITCH FOR TRANSMISSION OR

TS14002 - Semtech
TS14002 - Semtech

AN-1913 LM5088 Evaluation Board (Rev. E)
AN-1913 LM5088 Evaluation Board (Rev. E)

... TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguar ...
TPS2838 数据资料 dataSheet 下载
TPS2838 数据资料 dataSheet 下载

... BOOT to PGND (high-side driver ON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 30 V BOOTLO to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 16 V BOOT to BOOTLO . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Benefits of IGBT Technology versus SCR Dimming
Benefits of IGBT Technology versus SCR Dimming

... dimmer, more efficient at any load, create no mechanical buzz or hum, and use natural-convection cooling to produce less heat, they can be distributed adjacent to the required dimmed load. Distributed Dimming is the most cost effective way to equip a facility. Savings result from lower electrical in ...
Checking Voltage Drops - Colorado Contractors Association
Checking Voltage Drops - Colorado Contractors Association

... 3) To remove surface charge, turn on the headlights and blower motor (high speed) for one minute. Then turn off the devices and wait two minutes for the voltage to stabilize. 4) Once you have a reading that is between 12.4 and 12.6 volts you will then start the engine and bring it to normal operatin ...
PDF (1,463 KB)
PDF (1,463 KB)

... applications including home electronic appliances, industrial machines, electric railways and automotives. For the Si chips that are at the heart of power semiconductors, we have introduced the Carrier Stored Trench Gate Bipolar Transistor (CSTBT) structure to reduce power loss and make the equipmen ...
User Manual High-Speed Polarization Controller
User Manual High-Speed Polarization Controller

... material offering fast response in µs, in contract with conventional polarization controllers with speed in ms. The dramatic increase in response speed enables the new polarization controller suitable for demanding 40Gbs PMDC application as well as polarization Mux/DeMux application. In addition, th ...
PDF
PDF

... star and supplied respectively by the sex-phases voltages system out of phase 2π/6 between them. The output of each model supplies its own voltage doubler and voltage stabilizer, composed of a capacitor and a diode which in his turn supplies a single magnetron. The mounting in figure 8 was simulated ...
SOLAR BEACH CHAIR
SOLAR BEACH CHAIR

... The FET (Field Effect Transistor) is the major switching component of the buck converter. It will take an outside signal from the control circuitry and allow more or less current to flow through to the output depending on the output voltage. We will be using a NEXFET Power MOSFET, IRF540PbF. Accordi ...
MECKLENBURG COUNTY 4/13/11 ELECTRICAL CONSISTENCY MEETING
MECKLENBURG COUNTY 4/13/11 ELECTRICAL CONSISTENCY MEETING

TPS65137 数据资料 dataSheet 下载
TPS65137 数据资料 dataSheet 下载

... For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as specified in JESD51-7, in an environme ...
Implementation of the ESVM
Implementation of the ESVM

- AEG Power Solutions
- AEG Power Solutions

... Is an air-conditioning unit required for the UPS system ? There is no need for the installation room to be air-conditioned. How ever, the installation room must be sufficiently ventilated to allow the heat losses from the UPS system to be dissipated. How ever, the installation room must be sufficien ...
Switched-Mode Parallel-Circuit Class E Tuned Power Amplifiers
Switched-Mode Parallel-Circuit Class E Tuned Power Amplifiers

... However, the circuit schematic with a shunt capacitance and series inductance that can provide ideally 100-percent collector efficiency is not a unique. The same results can be achieved with parallel-circuit Class E configuration with the parallel inductance, parallel capacitance and fundamentally t ...
EGTOGET Seminar Topics
EGTOGET Seminar Topics

... Thus Te at rated voltage proportional to the sine of the angular separation of the two voltages, but the direction of the torque will depend on which voltage is leading. The contact assembly as shown in the next slide The cup shaft is fastened to the lever arm plate so that they rotate together. A s ...
DH34667671
DH34667671

... wind turbines, the induction generator is directly connected to the electrical grid accordingly. Since the speed is almost fixed to the grid frequency and most certainly not controllable, it is not possible to store the turbulence of the wind in form of rotational energy. For a variable speed wind t ...
MAX8526/MAX8527/MAX8528 1.425V to 3.6V Input, 2A, 0.2V Dropout LDO Regulators General Description
MAX8526/MAX8527/MAX8528 1.425V to 3.6V Input, 2A, 0.2V Dropout LDO Regulators General Description

... 2A of output current with as little as 200mV of headroom from input to output. The PMOS output stage can be driven from input voltages down to +1.425V without sacrificing stability or transient performance. Since this regulator has a PMOS output device, supply current is not a significant function o ...
surge protective devices
surge protective devices

... When a surge voltage is produced in an electrical conductor, an over-current with a magnitude of several kA is lead to earth, it can reach installation through low voltage network, data lines (voice & data), high frequency lines (antennas) or conductors of earth terminations. In order to avoid the o ...
Levitating LED Light
Levitating LED Light

... Electromagnetics, Power and Controls Systems, and could be sold to Engineering schools. Its function is based on the principles of electromagnetic induction wherein a circular piece of wire attached to a rare earth (Neodymium) magnet is suspended in a magnetic field using a magnetic coil above the b ...
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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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