• 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
FD23917923
FD23917923

... network can be restricted by thermal, voltage and stability limits. On the other hand, it is highly recognized that, with the capability of flexible power flow [9], FACTS technology has introduced a severe impact to the transmission system utilization with regards to those three constraints. From th ...
Aviation Electricity and Electronics—Power Generation and
Aviation Electricity and Electronics—Power Generation and

... revolution produces six cycles. The output frequency of the generator varies in direct proportion to the engine drive speed. A generator operating at 6,000 rpm is operating at 100 revolutions per second or at 600 Hz. ...
UCC28517 Evaluation Module (EVM)
UCC28517 Evaluation Module (EVM)

... If there are questions concerning the input range, please contact a TI field representative prior to connecting the input power. Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM. Please consult the EVM User’s Guide pr ...
RURD460, RURD460S 4 A, 600 V, Ultrafast Diode Features
RURD460, RURD460S 4 A, 600 V, Ultrafast Diode Features

... Datasheet contains the design specifications for product development. Specifications may change in any manner without notice. ...
DT2042-04SO Mechanical Data Features
DT2042-04SO Mechanical Data Features

... indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more U ...
SN74SSTV32867 数据资料 dataSheet 下载
SN74SSTV32867 数据资料 dataSheet 下载

... Package thermal impedance, θJA (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C † Stresses ...
analogue meters
analogue meters

A.6 The MOS capacitor The MOS capacitor consists of a metal
A.6 The MOS capacitor The MOS capacitor consists of a metal

... both sides of the oxide as in a parallel plate capacitor. This changes as the applied bias voltage becomes positive, creating a depletion layer in the semiconductor. This depletion layer prevents carriers from moving towards the semiconductor-oxide interface. The variation of the charge therefore oc ...
1ch Small Package High Side Switch ICs Datasheet
1ch Small Package High Side Switch ICs Datasheet

... VIN terminal and VOUT terminal are connected to the drain and the source of switch MOSFET respectively. And the VIN terminal is used also as power source input to internal control circuit. When the switch is turned ON from EN,/EN control input, the switch is bidirectional. VIN terminal and VOUT term ...
MAX8844Z/MAX8844Y 28V Dual Input Linear Li+ Battery Chargers with General Description
MAX8844Z/MAX8844Y 28V Dual Input Linear Li+ Battery Chargers with General Description

Four-Phase Oscillators Employing Two Active Elements
Four-Phase Oscillators Employing Two Active Elements

... Substituting the formula for OF from Tab. 1 into this equation, the voltage ratio will be as shown in the last row of Tab. 1. It confirms the fact that the signals Vo1+ and Vo2+ are in the quadrature, and that the circuit in Fig. 2 (a) represents a four-phase oscillator with equally spaced phase shi ...
LMG5200 80V, 10A GaN Half-Bridge Power Stage
LMG5200 80V, 10A GaN Half-Bridge Power Stage

FAN6921MR Integrated Critical Mode PFC and Quasi-Resonant Current Mode PWM Controller
FAN6921MR Integrated Critical Mode PFC and Quasi-Resonant Current Mode PWM Controller

... Adjustable Over-Temperature Latched (RT Pin) VDD Pin and Output Voltage OVP (Latched) Internal Over-Temperature Shutdown (140°C) ...
SN74AHCT1G32 数据资料 dataSheet 下载
SN74AHCT1G32 数据资料 dataSheet 下载

... obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the speci ...
1. Introduction - About the journal
1. Introduction - About the journal

... Substituting the formula for OF from Tab. 1 into this equation, the voltage ratio will be as shown in the last row of Tab. 1. It confirms the fact that the signals Vo1+ and Vo2+ are in the quadrature, and that the circuit in Fig. 2 (a) represents a four-phase oscillator with equally spaced phase shi ...
LOW-POWER DISSIPATION ADSL LINE DRIVER THS6182 FEATURES DESCRIPTION
LOW-POWER DISSIPATION ADSL LINE DRIVER THS6182 FEATURES DESCRIPTION

Old Company Name in Catalogs and Other Documents
Old Company Name in Catalogs and Other Documents

... additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website. Renesas Electronics does not assume any liability for infringement of patents, copyrights, or other intellectual property rights of third parties by or arising from the use of Rene ...
Evolutionary Audio - Keith
Evolutionary Audio - Keith

... to fall as the frequency approaches the upper (or lower) 1800 phase-shift points. With most direct-coupled cir­ cuits, the LF loop phase shift will not exceed a safe value ; stability problems are therefore confined to the HF end of the pass-band. It was, and is, customary to achieve Hr loop stabili ...
LM1575/LM2575/LM2575HV SIMPLE
LM1575/LM2575/LM2575HV SIMPLE

LED, LCD characteristics, Tunnel diode, Schottky diode
LED, LCD characteristics, Tunnel diode, Schottky diode

... front and an analyzer/reflector is applied to the back of the cell. When randomly polarized light passes through the front polarizer it becomes linearly polarized. It then passes through the front glass and is rotated by the liquid crystal molecules and passes through the rear glass. If the analyzer ...
A 0.8V 5.9GHz WIDE TUNING RANGE CMOS VCO USING
A 0.8V 5.9GHz WIDE TUNING RANGE CMOS VCO USING

... The VCO core dissipates 1.2mW of power. When the supply voltage is reduced to 0.6V, the tuning range of the VCO becomes 22.64% from 4.7 to 5.9GHz and the phase noise is 105.24dBc/Hz at 1MHz offset from the carrier at 5.65GHz. In this case, the VCO core consumes only 0.9mW. The VCO was implemented in ...
Integrated Charger, Dual Main Step-Down Controllers, and Dual LDO Regulators MAX17085B General Description
Integrated Charger, Dual Main Step-Down Controllers, and Dual LDO Regulators MAX17085B General Description

... The charger uses n-channel switching MOSFETs. Adjustable charge current, charge voltage, and cell selection allow for flexible use with different battery packs. Charge current is set by an analog control input, or a PWM input. High-accuracy current-sense amplifiers provide fast cycle-by-cycle curr ...
download
download

... 2) The value of IC could be very high because their are no resistors in the collector-emitter circuit to limit the current. Current is limited only by the internal resistance of the transistors when they are in saturation. Ic ...
Setting up the stick pots for the Phil_G proportional encoders:
Setting up the stick pots for the Phil_G proportional encoders:

EEAP 245_Due: February 2, 1998
EEAP 245_Due: February 2, 1998

... Figure 2. Sample waveforms. (f = 1 kHz, VPP = 5V.) We will be using two different instruments in this lab: (1) the function or waveform generator and (2) the oscilloscope. Both are among the most important instruments in electronics. It is essential that you know how to use both instruments well. Th ...
< 1 ... 203 204 205 206 207 208 209 210 211 ... 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