• 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
lecture 1 - Rose
lecture 1 - Rose

FSGM0565RB Green-Mode Fairchild Power Switch (FPS™)  FSGM
FSGM0565RB Green-Mode Fairchild Power Switch (FPS™) FSGM

... However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operation, the overload protection circuit is designed to trigger only after a specified time to determine whether it is a transient situation or a ...
three-phase bridge rectifiers (b6)
three-phase bridge rectifiers (b6)

... in Fig.13.1. They are already known the DC loads which must be supplied with a well filtered DC current, such as the R-L passive loads (Fig.13.1.a) or the R-L-E active loads (e.g. DC motors → Fig.13.1.b). Even the frequency of the pulses from the waveform of the output DC voltage (fp = 6×f = 300Hz) ...
XCL211/XCL212Series
XCL211/XCL212Series

ISL6730A, ISL6730B, ISL6730C, ISL6730D Datasheet
ISL6730A, ISL6730B, ISL6730C, ISL6730D Datasheet

... When the VFB pin is below 0.2V, the controller is disabled and the PWM output driver is tri-stated. When disabled, the IC power will be reduced. During shutdown, the COMP pin is discharged to GND and the controller is disabled. The Over-Temperature Protection (OTP) is still alive to prevent the cont ...
www.ijreat.org - International Journal of Research in Engineering
www.ijreat.org - International Journal of Research in Engineering

... travels through 400 (190 in hexadecimal) pulses. During an initial delay of 2.7ms, the FPGA core produces “000” output which was fed to the input of three phase inverter driver, so that none of the MOSFETs would be fired. This state in FSM (as shown in Fig.1) is referred to as ‘s0’ and the signal in ...
BDTIC CCM-PFC ICE1PCS02 ICE1PCS02G
BDTIC CCM-PFC ICE1PCS02 ICE1PCS02G

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... control method where hysteresis comparators are used to impose a dead band or hysteresis around the reference current. This control scheme provides excellent dynamic performance because it acts quickly. Also, an inherent peak current limiting capability is provided. This technique does not need any ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... The Dynamic Voltage Restorer (DVR) is a powerful controller that is connected in series using transformer in delta (Δ) with line distribution system as shown in fig.1. The DVR is a solid state power electronics switching device consisting of either GTO or IGBT, a capacitor bank as a energy storage d ...
What’s in it for me?
What’s in it for me?

...  Islanding operation brings benefits to customers  However, once islanding occurs, short circuit levels may drop significantly due to the absence of strong utility grid  In this case, protection system designed for high fault currents will not respond and new protection strategies are required to ...
ADM1070 数据手册DataSheet 下载
ADM1070 数据手册DataSheet 下载

STC03DE220HV
STC03DE220HV

... The STC03DE220HV is manufactured in a hybrid structure, using dedicated high voltage bipolar and low voltage MOSFET technologies, aimed to providing the best performance in ESBT topology. The STC03DE220HV is designed for use in aux flyback SMPS for any three phase application. ...
IOSR Journal of Electrical and Electronics Engineering PP 45-50 www.iosrjournals.org
IOSR Journal of Electrical and Electronics Engineering PP 45-50 www.iosrjournals.org

... DVR is the series connected device that has the same structure as that of an SSSC. The main purpose of this device is to protect sensitive loads from sagging/swell, interruption in the supply side. This is accomplished by rapid series voltage injection to compensate for the drop/rise in the supply v ...
MAX1873 Simple Current-Limited Switch-Mode Li+ Charger Controller General Description
MAX1873 Simple Current-Limited Switch-Mode Li+ Charger Controller General Description

... packs. It includes a high-efficiency step-down DC-DC converter that controls charging voltage and current. It also features input source current limiting so that an AC adapter that supplies less than the total system current in addition to charging current can be used without fear of overload. The D ...
document
document

SOT-23-6L Plastic-Encapsulate MOSFETS
SOT-23-6L Plastic-Encapsulate MOSFETS

... Description This P-Channel MOSFET is produced using advanced PowerTrench process that has been especially tailored to minimize on-state resistance and yet maintain low gate charge for superior switching performance. These devices have been designed to offer exceptional power dissipation In a very sm ...
LT1513/LT1513-2 - Linear Technology
LT1513/LT1513-2 - Linear Technology

... path in Figure 1 which includes SW to C2, D1, C1 and around to the LT1513 ground pin should be as short as possible to minimize voltage spikes at switch turn-off. S/S (Pin 6): This pin can be used for shutdown and/or synchronization. It is logic level compatible, but can be tied to VIN if desired. I ...
Navy Electricity and Electronics Training Series
Navy Electricity and Electronics Training Series

Monotonic, Inrush Current Limited Start-Up for
Monotonic, Inrush Current Limited Start-Up for

File - Electrical Engineering
File - Electrical Engineering

BDTIC www.BDTIC.com/infineon Phase Cut Dimmable Isolated Flyback Converter for LED Retrofit Bulb with
BDTIC www.BDTIC.com/infineon Phase Cut Dimmable Isolated Flyback Converter for LED Retrofit Bulb with

... circuitry formed by R13, C6, D1, and R14. C6, together with D1 and the auxiliary winding of the flyback transformer will produce a negative voltage which is proportional to the rectified input voltage. With choosing proper value of R13, the peak voltage level at the base of Q2, and thus VR pin’s vol ...
Single-Phase Pulse Width Modulated Rectifier
Single-Phase Pulse Width Modulated Rectifier

... 2 Phase controlled rectifiers The electric energy conversion made by semiconducting converters is being used more and more. This had led to the growth of negative phenomenons, that appeared negligible, when only a few converters being used. However the development of semiconductor structures has ena ...
Pantograph disconnector type GW54, up to 550 kV Maximum
Pantograph disconnector type GW54, up to 550 kV Maximum

... the highest records of operation reliability. The worldwide experience, often under severe climatic conditions, is applied for continual product improvement. Applications A mechanical device for providing isolation of power equipment from the network, a disconnector is suitable for switching very sm ...
EM8559A
EM8559A

... The EM8559A has an internal soft-start circuit that increases cycle-by-cycle current limit comparator inverting input voltage slowly after it starts. The typical soft-start time is 3.5mS. The pulse width to the power MOSFET is progressively increased to establish the correct working conditions for t ...
59512 Hydro E-03-333 S4NVX
59512 Hydro E-03-333 S4NVX

... should alternate on each successive cycle of operation. Turn both H-O-A switches to Off position and allow sump to fill to the override control level(s). Turn switches to Auto position, and pumps should start and operate together until level drops to turn-off point. Repeat this operation cycle sever ...
< 1 ... 131 132 133 134 135 136 137 138 139 ... 489 >

Stepper motor



A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report