• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Series 70 ePODs: Type-P - LayerZero Power Systems, Inc
Series 70 ePODs: Type-P - LayerZero Power Systems, Inc

... Operators are well-protected from exposed connections. Normal operator sections (breakers/switches) are physically separated from the power electronics and control electronics sections, so that maintenance on a section can be safely performed. If maintenance is required on a particular section, powe ...
the mcintosh mc 2105 solid state stereo power amplifier
the mcintosh mc 2105 solid state stereo power amplifier

... coupled amplifier with two inputs and one output. The signal from the preamplifier section connects to one of these inputs. Both AC and DC negative feedback are applied to the other input. This large quantity of feedback is used to reduce noise and distortion. The signal is then fed to a voltage amp ...
C_201509_Qiteng_Hong_APAP_LoadShedding_Final
C_201509_Qiteng_Hong_APAP_LoadShedding_Final

BDTIC www.BDTIC.com/infineon  Industrial Power Control
BDTIC www.BDTIC.com/infineon Industrial Power Control

... To ensure correct switching of MOSFETs the device is equipped with an undervoltage lockout for input and output independently. Operation starts only after both VCC levels have increased beyond the respective VUVLOH levels (see also Figure 8). If the power supply voltage VVCC1 of the input chip drops ...
Assignment MSWord - Technical Learning College
Assignment MSWord - Technical Learning College

... law states that a pressure set up in a fluid acts equally in all directions and at right angles to the containing surfaces. This covers the situation only for fluids at rest or practically at rest. It is true only for the factors making up static head. A. P = F/A D. Two different heights B. Any dyna ...
ADM209 数据手册DataSheet 下载
ADM209 数据手册DataSheet 下载

... EIA-232-E and V.28 communications interfaces, especially in applications where ±12 V is not available. The ADM206, ADM211, and ADM213 feature a low power shutdown mode that reduces power dissipation to less than 5 µW, making them ideally suited for battery-powered equipment. The ADM213 has an active ...
Comparison of Distribution Transformer Losses and Capacity under
Comparison of Distribution Transformer Losses and Capacity under

... Abstract—The significance of harmonics in power systems has increased substantially due to the use of solid state controlled loads and other high frequency producing devices. An important consideration when evaluating the impact of harmonics is their effect on power system components and loads. Tran ...
Introduction to iXBlue Mach-Zehnder Modulators Bias Controllers
Introduction to iXBlue Mach-Zehnder Modulators Bias Controllers

... static electrical charge accumulation… This drift causes the transfer function to move in the horizontal direction ; the modulation signal is then applied to a changing operating point, that can modify strongly the obtained modulation. The bias voltage applied to the DC electrodes aims to :  select ...
A Measurement Platform for DVS Algorithm Development and Analysis
A Measurement Platform for DVS Algorithm Development and Analysis

Abstract-This paper presents the analyzed, design and
Abstract-This paper presents the analyzed, design and

... ballast. Section III show study about the free acoustic resonance zone for 70W halide lamps from different manufactures. Section IV presents a modulation of the switching frequency ballast used to eliminate the acoustic resonance phenomenon. Finally, the conclusions of this work are presented in sec ...
Micro- Parallel inverter
Micro- Parallel inverter

... Smart grid data collection, Autonomus self-diagnostic, alerts Web-based reporting,. Remote control and upgrades. ...
Inductor Discharging
Inductor Discharging

... 100 mA (IO) current flow. It acts like a short circuit… • When the switch is opened, the inductor will immediately induce a voltage to keep the 100 mA current constant. − KVL can be used to calculate this induced voltage. − Notice the polarity of the induced voltage! ...
Control 30 - JBL Professional
Control 30 - JBL Professional

... High-Pass Frequency Recommendations The line-matching transformer in the Control 30 has been designed to minimize saturation; however, it is recommended that the system be high-passed to prevent very low-frequency content from overloading the transformer and/or the driving amplifier at high signal l ...
ad558
ad558

... inputs. Î common ones are 8, 10, 12 pins • The number of analog output levels is equal to 2n, where n is the number of data inputs Î 8-input DAC (MC1408) gives 256 discrete voltage/current levels of output ...
Neon Application Information
Neon Application Information

Voltage and Current Relay Monitoring Relay NMI 1001 Current
Voltage and Current Relay Monitoring Relay NMI 1001 Current

BD9123MUV
BD9123MUV

... Datasheet ...
Developing Reliable Isolation Circuits - Low
Developing Reliable Isolation Circuits - Low

... Isolation circuits designed to withstand the rigors of industrial environments are the focus of this white paper. Industrial electronic equipment commonly uses galvanic isolators to protect systems and users from potentially hazardous voltages. It is well known that industrial equipment must operate ...
BA3121F
BA3121F

... Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect ...
LM833-N 数据资料 dataSheet 下载
LM833-N 数据资料 dataSheet 下载

... functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaran ...
LT1940/LT1940L - Dual Monolithic 1.4A, 1.1
LT1940/LT1940L - Dual Monolithic 1.4A, 1.1

VDD! VDD! GND! GND! - University of California, Berkeley
VDD! VDD! GND! GND! - University of California, Berkeley

CMOS - Sites at Penn State
CMOS - Sites at Penn State

Chevy Volt Lear 3.3kW High Voltage Charger
Chevy Volt Lear 3.3kW High Voltage Charger

... If  at  any  time  during  the  charge  process,  either  the  AC  power  or  12v  power  are   removed,  charging  will  terminate.    It  will  resume  if  AC  power  and  12vdc  later   become  available.    In  this  way,  y ...
Strain Gauge/Bridge/Load Cell/Pressure Transducer to DC
Strain Gauge/Bridge/Load Cell/Pressure Transducer to DC

... into the selected DC voltage or current output that is linearly related to the input. The full 3-way (input, output, power) isolation makes this module useful for ground loop elimination, common mode signal rejection or noise pickup reduction. The adjustable excitation power supply generates a stabl ...
< 1 ... 397 398 399 400 401 402 403 404 405 ... 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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report