• 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
High Power Flyback Controller with Primary
High Power Flyback Controller with Primary

... of the output current limit using only primary-side, current sensing. Uniquely, this CC function operates seamlessly as the operating mode changes between DCM and CCM operation. The controller includes an internal, high-voltage (HV) start-up current-source, and employs low-power sleep modes and swit ...
A.C. Chow and D.J. Perreault, “Design of an Active Ripple Filter using Voltage Injection,” 2001 IEEE Power Electronics Specialists Conference , Vancouver, Canada, June 2001, pp. 390-397.
A.C. Chow and D.J. Perreault, “Design of an Active Ripple Filter using Voltage Injection,” 2001 IEEE Power Electronics Specialists Conference , Vancouver, Canada, June 2001, pp. 390-397.

... Active filters may be characterized by whether they inject ripple voltages [3,7] or currents [2,4-10] in the circuit to achieve ripple reduction. Controls governing the ripple correction can be derived through either feedforward [2,9,10] or feedback [5-8]. Feedforward filters sense a ripple componen ...
The MOSFET Current M..
The MOSFET Current M..

Induction motor - KUET | Khulna University of Engineering
Induction motor - KUET | Khulna University of Engineering

... of flux, the rotating vector indicates there is a rotating magnetic field within stator having constant amount of flux. The speed at which flux rotates is called synchronous speed. But this is apparent that rotating field cuts each of the coils also during rotation. So it induces a voltage into the ...
Temperature Dependent Pspice Model of Silicon Carbide Power MOSFET
Temperature Dependent Pspice Model of Silicon Carbide Power MOSFET

Multi-Output Power Supplies with VCOM Amplifier and High
Multi-Output Power Supplies with VCOM Amplifier and High

... The step-up and step-down switching regulators feature internal power MOSFETs and high-frequency operation allowing the use of small inductors and capacitors, resulting in a compact solution. The step-up regulator provides TFT source driver supply voltage, while the step-down regulator provides the ...
DataSheet
DataSheet

... input. An off-chip capacitor allows the reconfiguration of the RF port to operate over the whole 100 - 4000 MHz band without additional off-chip components. Also ideal for software radio and other multi-band receivers, the HMC597LP4(E) demodulator is housed in a compact 4 x 4 mm SMT QFN package and ...
SYL-1512A Instruction Manual
SYL-1512A Instruction Manual

... a 120V AC coil, jump a wire between terminal 2 and 4. Connect terminal 5 to one lead of the coil and terminal 1 to the other lead of the coil. Set the system output configuration, outy, to 1, 4, or 5 - depending on the control mode used. See Figure 11 and 13 for details. ...
MAX1997/MAX1998 Quintuple/Triple-Output TFT LCD Power Supplies with Fault Protection and VCOM Buffer
MAX1997/MAX1998 Quintuple/Triple-Output TFT LCD Power Supplies with Fault Protection and VCOM Buffer

... them complete power-supply systems for displays. The main DC-DC converter provides the regulated supply voltage for the display’s source-driver ICs. The converter is a high-frequency (up to 1.5MHz) step-up regulator with an integrated 14V N-channel MOSFET that allows the use of ultra-small inductors ...
Universal AC Input, 5 V or 12 V Output, 20 Watt Power Supply
Universal AC Input, 5 V or 12 V Output, 20 Watt Power Supply

DMS-40LCD Series - Murata Power Solutions
DMS-40LCD Series - Murata Power Solutions

... left open in most common applications. It can be used in certain “ratiometric” applications in which it is desireable for the meter’s reference to track an external reference. 7. Gain Adjust: There is a gain-adjust potentiometer on the back of each meter. It has approximately ±150 counts of adjustme ...
LTC6990 - TimerBlox: Voltage Controlled Silicon Oscillator
LTC6990 - TimerBlox: Voltage Controlled Silicon Oscillator

AD421 - Analog Devices
AD421 - Analog Devices

... Reference Output 1. A precision +1.25 V reference is provided at this pin. It is intended as a precision reference source for other devices in the transmitter. REF OUT1 is a buffered output capable of providing up to 0.5 mA to external circuitry. If REF OUT 1 is required to sink current, a resistive ...
12-Bit High Speed, Low Power Sampling
12-Bit High Speed, Low Power Sampling

MAX8744A/MAX8745A High-Efficiency, Quad-Output, Main Power- Supply Controllers for Notebook Computers General Description
MAX8744A/MAX8745A High-Efficiency, Quad-Output, Main Power- Supply Controllers for Notebook Computers General Description

AD9057 数据手册DataSheet下载
AD9057 数据手册DataSheet下载

... power-down function may be exercised to bring total consumption to <10 mW. In power-down mode, the digital outputs are driven to a high impedance state. Fabricated on an advanced BiCMOS process, the AD9057 is available in a space-saving 20-lead shrink small outline package (20-lead SSOP) and is spec ...
Wide Speed Range Operation of Concentrated Winding Interior
Wide Speed Range Operation of Concentrated Winding Interior

... geometry is conducted. Two Dimensional Finite Element Method (2D-FEM) is used to simulate the impact of geometric design changes on motor operation. In order to increase the voltage applied to each phase of the machine and extend the operating region, an IPMSM is modeled in an open winding structure ...
BDTIC www.BDTIC.com/infineon Wireless Components ASK/FSK Transmitter 868/433 MHz
BDTIC www.BDTIC.com/infineon Wireless Components ASK/FSK Transmitter 868/433 MHz

... 300 Ω ...
Using 650-V High Speed 3 IGBTs in Power Modules for... ter Performance Improvement
Using 650-V High Speed 3 IGBTs in Power Modules for... ter Performance Improvement

EN-3111L EMach Lab F12
EN-3111L EMach Lab F12

... conducted in the upstairs laboratory and six are conducted in the downstairs lab. At each class ...
Uninterruptible Power Supplies (UPS)
Uninterruptible Power Supplies (UPS)

... The advantages of installing a Surge Protective Device (SPD) on a facility's service entrance are well documented and acknowledged as being essential in protecting sensitive electronic equipment from outside sources of transient voltages such as lightning strikes and utility company switching. For s ...
AD96685 数据手册DataSheet 下载
AD96685 数据手册DataSheet 下载

... cause the output to oscillate (possibly affecting the other comparator which is being used) unless the output is forced into a fixed state. This is easily accomplished by ensuring that the two inputs are at least one diode drop apart, while also grounding the LATCH ENABLE input. The best performance ...
How to Design With TPS65560/TPS65561 Photo Flash Charger and IGBT Driver ..................................................................................
How to Design With TPS65560/TPS65561 Photo Flash Charger and IGBT Driver ..................................................................................

... xenon tube applications. Additional advantages are fast charging times and high efficiency from an optimized PWM control algorithm. The typical application circuit is shown in Figure 1. Among the salient features of the TPS65560/TPS65561 are programmable peak current at primary side, detecting STOP ...
GD75323 数据资料 dataSheet 下载
GD75323 数据资料 dataSheet 下载

... † See Figure 10 to select the correct values for the loading capacitors (C1, C2, C3, C4, and C5), which may be required to meet the RS-232 maximum slew-rate requirement of 30 V/µs. The value of the loading capacitors required depends upon the line length and desired slew rate, but is typically 330 p ...
PDF (Publisher`s version)
PDF (Publisher`s version)

... same according to (11). However, if we keep the fi constant and increase N , fo will decrease and thereby decrease the dynamic power and, hence, the FOM. B. FOM of a CML-FF The CML-FF in Fig. 2 (top) consists of two identical CML master–slave latches. The delay variation of CML-FF, same as that of a ...
< 1 ... 285 286 287 288 289 290 291 292 293 ... 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