• 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
Chargemaster Pinner, Pinner-R and Pinner-T Arc
Chargemaster Pinner, Pinner-R and Pinner-T Arc

LF412 - User Web Pages
LF412 - User Web Pages

AAT4686 数据资料DataSheet下载
AAT4686 数据资料DataSheet下载

... requirement for CIN. However, for higher current operation, ceramic capacitors are recommended for CIN due to their inherent capability over tantalum capacitors to withstand input current surges from low impedance sources such as batteries in portable devices. Capacitors are typically manufactured i ...
Voltage Stability Using PV Curves
Voltage Stability Using PV Curves

... – When in use, each individual generator will be moved to its min/max in succession in order of descending participation factor (as set in its injection group participation point) – Can choose to do this for the source only, sink only, or both – Can also choose to Use Economic merit order dispatch t ...
HINCP Series Basic Control Contactor Panel Interiors Installation
HINCP Series Basic Control Contactor Panel Interiors Installation

... Basic Control Contactor Panels use normally closed contactors. When contactor poles are closed, loads are energized or turned ON. When contactor poles are opened, loads are de-energized or turned OFF. ...
Data Sheets
Data Sheets

... requirement for CIN. However, for higher current operation, ceramic capacitors are recommended for CIN due to their inherent capability over tantalum capacitors to withstand input current surges from low impedance sources such as batteries in portable devices. Capacitors are typically manufactured i ...
Power Network-on-Chip for Scalable Power Delivery
Power Network-on-Chip for Scalable Power Delivery

... combine all of the current loads located within a specific on-chip power domain with the decoupling capacitors that supply the local current demand within that region. To support DVS, power switches in the proposed PNoC are dynamically controlled, (dis)connecting power routers within individual volt ...
2.4-GHz RF Front End
2.4-GHz RF Front End

... The four digital control pins (PAEN, EN, HGM, RXTX) have built-in level-shifting functionality, meaning that if the CC2590 is operating from a 3.6-V supply voltage, the control pins will still sense 1.6-V - 1.8-V signals as logical ...
OPA2604AUG4中文资料
OPA2604AUG4中文资料

... factor of 101. This extends themeasurement limit, including the effects of the signal-sourcepurity, by a factor of 101. Note that the input signal and loadapplied to the op amp are the same as with conventionalfeedback without R3. ...
PAH-28/12.5-D48NB-C Datasheet
PAH-28/12.5-D48NB-C Datasheet

... applications, wireless networks, and telecom applications. The baseplate provides a means for conduction cooling in demanding thermal environment conditions. ...
Water/Sewer/Drainage Electrical Specifications
Water/Sewer/Drainage Electrical Specifications

... no surcharge penalty will be accessed by BC Hydro. ...
AP8802  1A LED STEP-DOWN CONVERTER Description
AP8802 1A LED STEP-DOWN CONVERTER Description

... 6. For 100% brightness either leave floating or connect to 1.25V relative to GND. 7. AP8802 will operate at higher frequencies but accuracy will be affected due to propagation delays and also increased power dissipation will occur due to increased switching losses. 8. For most applications the LED c ...
Lecture 5 - Termination, TX Driver, and Multiplexer
Lecture 5 - Termination, TX Driver, and Multiplexer

... • High-swing voltage-mode driver termination is implemented with a combination of output driver transistors and series resistors • To meet termination resistance levels (50), large output transistors are required • Degrades potential power savings vs current-mode driver ...
A/V Power Mgmt - Which Devices To Buy
A/V Power Mgmt - Which Devices To Buy

... want to protect. Since a major purpose of power management is protection, you should consider how much "psychological insurance" you need. After that you may want to consider non-safety related performance criteria. An example of a performance related might be a high-end power line conditioner with ...
Activity 8C
Activity 8C

... The development of alternative switching (e.g., power transistors, GTO s), the applications for type and circuit of choppers are limited to high power levels and especially, to traction motor control. Some of chopper type and circuit used by traction equipment manufactures are discussed in this sect ...
SBS 1.1-COMPLIANT FUEL GAUGE WITH
SBS 1.1-COMPLIANT FUEL GAUGE WITH

... The bq34z950 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track technology, is a single IC solution designed for battery-pack or in-system installation. The bq34z950 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using i ...
TLV320x-Q1 40-ns, microPower, Push
TLV320x-Q1 40-ns, microPower, Push

single phase power factor correction circuit
single phase power factor correction circuit

... to follow the input voltage. It has several advantages, such as a small EMI filter due to its continuous input current, and a simple circuit. The basic requirement is that the output voltage must be higher than the input voltage. For a wide range output voltage, as in this application, the converter ...
SEL-751 Feeder Protection Relay Data Sheet
SEL-751 Feeder Protection Relay Data Sheet

... the SEL-751. You can use the SEL-751 directional and non-directional overcurrent functions to protect virtually any power system circuit or device including lines, feeders, transformers, capacitor banks, reactors, and generators. Over- and underfrequency, over- and undervoltage, vector shift element ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

RF3171 QUAD-BAND GMSK POLAR EDGE TXM, 2 UMTS SWITCH PORTS Features
RF3171 QUAD-BAND GMSK POLAR EDGE TXM, 2 UMTS SWITCH PORTS Features

... Product Description The RF3171 is a high-power, high-efficiency transmit module with integrated power control, an integrated pHEMT front end switch, and harmonic filtering functionality. This device is self-contained with 50 input and output terminals and no external matching circuits required. The ...
Real-Time Recognition Non-Intrusive Electrical Appliance
Real-Time Recognition Non-Intrusive Electrical Appliance

... showed a live deployment of their work but failed to discuss the recognition accuracy and how the various appliances were identified. Again, little was known about appliances with similar features. Lin and Tsai [20] proposed a new technique with an automatic non-dominated sorting genetic algorithm ( ...
Noise Countermeasures for AC Power Lines
Noise Countermeasures for AC Power Lines

... high-frequency noises just by connecting the case and the equipment’s FG. When the chassis of the equipment is painted, it will be necessary to realize a low-impedance connection status, by such means as scraping the paint off, as shown in Figure 13. When the case is made of plastic, a lead wire as ...
Output voltage for Step 4 (volts)
Output voltage for Step 4 (volts)

... All results, within reason, are what were expected. A small amount of error may have resulted from error in each components actual value, or from background noise. In part 1, step 3, the gain calculated for low frequencies (see Appendix II) was approximately the same as that predicted in step 1 (10 ...
General Description Features
General Description Features

... The Maxim ICL7116 and ICL7117 are 3½ digit monolithic analog-to-digital converters. They differ from the Maxim ICL7106 and ICL7107 in that the ICL7116 and ICL7117 have a Hold pin, which makes it possible to hold or “freeze” a reading. These integrating ADCs have very high input impedances and direct ...
< 1 ... 324 325 326 327 328 329 330 331 332 ... 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