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Simulation Tool for
Simulation Tool for

... The design of a suitable EMI filter can be done according different approaches [7-9]. Usually a high-order filter is used to reduce inductance and capacitance values. Ideally it could be considered that no harmonic components exist in the frequency range between the line and the switching frequencie ...
part 3: installation
part 3: installation

... of this specification indicating if the substitution meets or does not meet each item in this specification. 2.02 GENERAL DESCRIPTION A. The AC Drive shall convert the input AC mains power to an adjustable frequency and voltage. B. The input power section shall utilize a full wave bridge design inco ...
UNIT 10
UNIT 10

... diagram. This is so because there is negligible current through RG and hence practically no voltage across it. Both ends of RG have the same voltage, namely that of the lower end of RS i.e. 'ground' or 0 V. The source is therefore at a higher voltage than the gate, i.e. the gate is negative with res ...
Elektroniczne Układy i Systemy Zasilania
Elektroniczne Układy i Systemy Zasilania

... Switch-Mode Power Converters Application of the switching transformer ...
EE595_Team1_P3_Fall07
EE595_Team1_P3_Fall07

... Advantages of using an Ethernet - TCP/IP interface between the Thermal manager and the PC: • Ethernet and TCP/IP networks are everywhere. • Well established interfacing standards free the developer from the details of the Ethernet and TCP/IP guts, freeing up time for other aspects of the project. • ...
FDMF6704V - XS DrMOS FD M
FDMF6704V - XS DrMOS FD M

... uses Fairchild's high performance XSTM PowerTrenchTM 5 MOSFET technology, which dramatically reduces ringing in synchronous buck converter applications. PowerTrenchTM 5 can eliminate the need for a snubber circuit in buck converter applications. The driver IC incorporates advanced features such as S ...
MAX1917 Tracking, Sinking and Sourcing, Synchronous Buck General Description
MAX1917 Tracking, Sinking and Sourcing, Synchronous Buck General Description

... 1/2VDDR voltage for VTT and VTTR. The VTT and VTTR voltages are maintained within 1% of 1/2VDDR. The controller operates in synchronous rectification mode to ensure balanced current sourcing and sinking capability of up to 25A. With a shutdown current of less than 5µA, the MAX1917 is the best choice ...
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...  Multiplier circuit is a circuit to generate very high d.c voltages from single supply transformers by extending the simple voltage doubler circuits.  This is simple and compact when the load current requirement is less than one milliampere, such as for cathode ray tubes, etc.  Multiplier Circuit ...
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... combination. If the vehicle speed is higher than the desired operating point the constant can be increased, and if the speed is lower, the constant should be decreased. This calibration should be performed in the mid-point of the desired test speed range. Once the constant is established for a given ...
International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.1, pp. 1743-1748
International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.1, pp. 1743-1748

... VSI and CSI. The VSI topology based DVR has buck type output voltage characteristics thereby limiting the maximum voltage that can be attained. In CSI topology an additional dc–dc buck (or boost) converter is needed. The additional power conversion stage increases system cost and lower efficiency an ...
MO8009
MO8009

... • Ability to drive large capacitive loads while maintaining full swing with sharp edge rates. For more detailed information about rise/fall time control and drive strength selection, contact KDS. EMI Reduction by Slowing Rise/Fall Time Figure 16 shows the harmonic power reduction as the rise/fall ti ...
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... simple (idealized) cases to begin with • Resistor load models unity power factor load • Id load models large inductive load ...
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Slide Title Goes Here

infratek 108a single- to six phase power analyzer
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... Standard Measure Mode In the Standard Measure Mode 280 quantities per phase are measured without gap and are continuously updated. Values can be displayed on four display pages, can be saved in internal memory, or can be transferred via Interface to a computer. The display shows voltage, current, an ...
ECE 310 - University of Illinois at Urbana–Champaign
ECE 310 - University of Illinois at Urbana–Champaign

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... III.1 - General Statement on Ground Connection The ground connectionto TDA9103 not only carries the supply current, but is also the voltage reference for various functions. Consequently, it should not carry high currents with fast transients, like : - Vertical scanning supply - Supply for B+ convert ...
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... The purpose of this lab is to explore the Parallax BASIC Stamp II Microcontroller in various mechatronic applications and to expose you to some possible ways in which it can be utilized. The Stamp’s flexibility and ease of programming make it a very good choice for sensing and electronic control of ...
Response-Based, Feedforward Wide-Area Control
Response-Based, Feedforward Wide-Area Control

... transfer capability can be increased over 600 MW by widearea, response-based control for generator tripping [17]. An alternative strategy is to distribute some of the reactive power compensation control to substations (only simple local voltage relay supervision is used with central control). Figure ...
TPPM0301 数据资料 dataSheet 下载
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... Alternatively, if no dedicated copper plane is incorporated for this device and the PCB has a multilayer construction, the ground terminals (5 to 8) could be electrically connected to the ground plane of the board. This will provide a means for heat spreading through the copper plane associated with ...
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NSI50350AD - Constant Current Regulator and LED Driver
NSI50350AD - Constant Current Regulator and LED Driver

< 1 ... 645 646 647 648 649 650 651 652 653 ... 1315 >

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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