• 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
assign3
assign3

... transistors must be 1.3 V about VSS, since the source of the top left transistor is at 0.65 V above VSS. The top right transistor’s source must also be around 0.65 V to maintain the same Vgs voltage. Thus, the output drain can be no more than Vt volts below the gate, and so must be 1.3 V-0.5 V=0.8 V ...
Ultra-Low Noise Amplifier
Ultra-Low Noise Amplifier

Management of Microgrids in Market Environment
Management of Microgrids in Market Environment

... networks. The Mircogrid, a LV network that usually operates interconnected with the main MV network but in case of emergency can run autonomously, is a suggested structure for the co-ordination of the DG sources. In this study, the control approaches followed, possible market configuration as well a ...
Three-Dimensional Animations of Power
Three-Dimensional Animations of Power

Data Sheet (current)
Data Sheet (current)

... LVDS drivers and receivers are intended to be primarily used in an uncomplicated point-to-point configuration as is shown in Figure 7. This configuration provides a clean signaling environment for the quick edge rates of the drivers. The receiver is connected to the driver through a balanced media w ...
Ring core chokes with iron powder core
Ring core chokes with iron powder core

... digitally controlled. The output is then filtered employing an inductance. The single-phase bridge rectifier that is generally used in the input stage is connected to a large capacitor that smooths the pulsating voltage. However, this recharging of the capacitor causes a non-sinusoidal current flow ...
FSB32560 Motion SPM 3 Series FSB32560  Motio
FSB32560 Motion SPM 3 Series FSB32560 Motio

... 7. To prevent errors of the protection function, the wiring around RF and CSC should be as short as possible. 8. In the short-circuit protection circuit, please select the RFCSC time constant in the range 1.5 ~ 2 s. 9. Each capacitor should be mounted as close to the pins of the Motion SPM 3 produc ...
LM224A, LM324A datasheet
LM224A, LM324A datasheet

... there is also an NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the op amps to go to the VCC voltage level (or to ground for a large overdrive) for the time during which an input is driven negative. This is not destructive and normal output starts up aga ...
M05
M05

Delay-Locked Loop Using 4 Cell Delay Line with Extended Inverters
Delay-Locked Loop Using 4 Cell Delay Line with Extended Inverters

Power Connectors for Topside and Subsea
Power Connectors for Topside and Subsea

Aalborg Universitet Resonant-inductor-voltage feedback active damping based control for grid-connected
Aalborg Universitet Resonant-inductor-voltage feedback active damping based control for grid-connected

BD8179MUV
BD8179MUV

... sufficient margin so that these two values are within the standard value range. (3) Selecting the Input Capacitor Since the peak current flows between the input and output at the DC/DC converter, a capacitor is required to install at the input side. For the reason, the low ESR capacitor is recommend ...
RF2173 - RFMD.com
RF2173 - RFMD.com

... components. A narrow microstrip line is recommended because DC losses in a bias choke will degrade efficiency and power. While the part is safe under CW operation, maximum power and reliability will be achieved under pulsed conditions. The data shown in this data sheet is based on a 12.5% duty cycle ...
MIC5318 - Microchip
MIC5318 - Microchip

LM22679 - Texas Instruments
LM22679 - Texas Instruments

... functions necessary to implement an efficient highvoltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 A of load current. Excellent line and load regulation along with high efficienc ...
NTE74LS196 Integrated Circuit TTL − Presettable
NTE74LS196 Integrated Circuit TTL − Presettable

... Description: The NTE74LS196 is a high−speed monolithic decade counter in a 14−Lead plastic DIP type package consisting of four DC coupled, master−slave flip−flops which are internally interconnected to provide a divide−by−two and a divide−by−five counter. This device is fully programmable; that is, ...
User`s Manual(current)
User`s Manual(current)

... 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 ...
Fuji Electric UPS7000HX-T3U (300, 400, and 500kVA) 480V 3
Fuji Electric UPS7000HX-T3U (300, 400, and 500kVA) 480V 3

... product equipped with our own patented components for optimal performance when it counts the most. ...
DC1521 - LT3956EUHE Evaluation Kit Quick
DC1521 - LT3956EUHE Evaluation Kit Quick

... The OUT terminal is available for the customer to monitor the state of the output capacitor directly. The OUT terminal can also be used as an input for buck mode topology. In general, OUT is 250mV higher than the VLED string voltage when the LEDs are running at full power. The PWM terminal must be p ...
TPS51117 Single Synchronous Step-Down
TPS51117 Single Synchronous Step-Down

... TPS51117 Single Synchronous Step-Down Controller 1 Features ...
NSS30100LT1G
NSS30100LT1G

... saturation voltage (VCE(sat)) and high current gain capability. These are designed for use in low voltage, high speed switching applications where affordable efficient energy control is important. Typical application are DC−DC converters and power management in portable and battery powered products ...
STGW25H120F
STGW25H120F

... Features ...
Chapter 9: Introduction to Electric Machines
Chapter 9: Introduction to Electric Machines

... • Normally a permanent magnet or a DC powered electromagnet will be placed at rotor to generate AC current • Stator would be wound with solenoid that carries the generated energy – there can be more than one windings hence it can generate more than 1 phase of electricity ...
BDTIC www.BDTIC.com/infineon PFC-DCM IC Boost Controller
BDTIC www.BDTIC.com/infineon PFC-DCM IC Boost Controller

... occurs near the line voltage peak and causes a high charge current spike with following characteristics: The apparent power is higher than the real power that means low power factor condition, the current spikes are non sinusoidal with a high content of harmonics causing line noise, the rectified vo ...
< 1 ... 676 677 678 679 680 681 682 683 684 ... 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