• Study Resource
  • Explore Categories
    • 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
How to select external components for DC/DC Converters
How to select external components for DC/DC Converters

SCHLUMBERGER 1260A Datasheet - Rent or Buy Quality Used
SCHLUMBERGER 1260A Datasheet - Rent or Buy Quality Used

... traceable Lab. Items are supplied with manuals, accessories and typically a full no-quibble 2 year warranty. Our staff have extensive backgrounds in T&M, totalling over 150 years of combined experience, which enables us to deliver industry-leading service and support. We endeavour to be customer foc ...
circuit description - Allegro MicroSystems
circuit description - Allegro MicroSystems

... spikes) for default control of maximum current. Notes on Startup Dynamics When input voltage is applied, the MOSFET gate drive capacitors C12 - C14 are charged through gate voltage clamp diodes D23 and D22 respectively, which fortunately holds MOSFETs Q3 and Q2 OFF as the Miller capacity (CDG) tries ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,

BD37544FS
BD37544FS

... No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products" ...
25471_energy_conversion_23
25471_energy_conversion_23

... • Armature voltage control works well for speeds below base speed & field current control works well for speeds above base speed • By combining two speed-control techniques in same motor, it is possible to get a range of speed variations of up to 40 to 1 or more • Shunt & S.E. motors have excellent ...
Word
Word

... 2. The three constants M, H, and Wk, are defined at the particular angular velocity of ωR. However, the machine speed ωm does deviate from ωR during the transient conditions for which we are interested to study. Therefore, to be rigorous, we should define M, H, and Wk relative to the machine speed ...
TS6001-2.5V Voltage Reference Demo Board
TS6001-2.5V Voltage Reference Demo Board

... Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, ...
How to measure residual voltage (V0)
How to measure residual voltage (V0)

Assembly Notes
Assembly Notes

20150522-Supplementary material
20150522-Supplementary material

... elements) on the power consumption (PD) of the rectifier diode. Now, we make an assumption that all the PZT elements (the number of PZT elements is n, n>1) have same size and performance, and each PZT element has output voltage of Vos, current of Ios, and power of Pos (=Vos·Ios) under an optimal loa ...
LM2575 - HTC Korea
LM2575 - HTC Korea

... with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5.0V,12V, 15V, and an adjustable output version. These regulatiors were designed to minimize the number of externalcomponents to simplify the power supply design. Standard series of inductors optim ...
A-open loop gain.
A-open loop gain.

... phase contribution at pole frequency -45° Total phase change is -90° attained at 10 times pole ...
Chapter 5 Control Logic
Chapter 5 Control Logic

... A good solid-state switch indicates source voltage when open and a slight voltage drop when closed. ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... automation is the act of automatically controlling the power system via automated processes within computers and intelligent I&C devices. It consists of three Major processes, namely, data acquisition, power system supervision and power Systems control all working in a coordinated automatic fashion. ...
Design and development of high voltage high power operational
Design and development of high voltage high power operational

... of the designed power opamp are given in table 1. The schematic for the opamp designed is given in figure 2. 3.1 Input opamp OPA445 (U2) is a FET based monolithic operational amplifier with a unity gain bandwidth of 4 MHz and capable of operation from power supplies up to ±45 V and output currents o ...
Overview of Custom Power Applications
Overview of Custom Power Applications

BAUR_violaTD_FINAL_english_TEXT
BAUR_violaTD_FINAL_english_TEXT

... In spite of their sturdiness, some plastic-insulated cables (PE, VPE) do reach their limits. The reason often is “water trees” (see Figure). They spread like little trees wherever there is a fault in the insulation, but don’t necessarily affect the functionality. They become “electrical trees” only ...
Aalborg Universitet "Active flux" orientation vector sensorless control of IPMSM
Aalborg Universitet "Active flux" orientation vector sensorless control of IPMSM

Depletion Mode MOSFET Technology
Depletion Mode MOSFET Technology

Mar 2002 Unique Instrumentation Amplifier Precisely Senses Differential Voltages from mV to V
Mar 2002 Unique Instrumentation Amplifier Precisely Senses Differential Voltages from mV to V

... Figure 5 illustrates the LTC2053 connected as a bridge amplifier. This straightforward circuit illustrates how easily this part can be applied. The supply voltage is a single 3V, the gain is 1001 and the DC common mode is half supply. Any AC common mode voltages up to 500Hz are rejected by 110dB. Li ...
AD580 数据手册DataSheet 下载
AD580 数据手册DataSheet 下载

... temperatures and guarantees that the output voltage deviation will fall within the guaranteed error band at these discrete temperatures. This approach, of course, makes no mention or guarantee of performance at any other temperature within the operating temperature range of the device. ...
DC/AC Cascaded H-Bridge Multilevel Boost Inverter With No
DC/AC Cascaded H-Bridge Multilevel Boost Inverter With No

Mixer design
Mixer design

... technical papers, a single ended mixer is designed. The basic topology of a single ended active mixer consist of a single NMOS transistor M1 acting as a V-I converter and then a current switching block for the Local Oscillator to switch the output currents consisting of 2 NMOS devices. The circuit h ...
Current Feedback Op-Amp
Current Feedback Op-Amp

< 1 ... 937 938 939 940 941 942 943 944 945 ... 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