• 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
Medium Voltage Distribution Catalogue 2015
Medium Voltage Distribution Catalogue 2015

... a fault. This restoration can be achieved with or without the need for communication, depending on the network and customer preferences. In either case, the switchgear is usually remotely controlled and it will automatically report the revised circuit and switchgear status to the central master stat ...
MAX3172/MAX3174 +3.3V Multiprotocol Software-Selectable Cable Terminators and Transceivers General Description
MAX3172/MAX3174 +3.3V Multiprotocol Software-Selectable Cable Terminators and Transceivers General Description

... a high-impedance state in no-cable mode, allowing this output line to be shared with other receivers (the receiver output has an internal pullup resistor to pull the output HIGH if not driven). Also, in no-cable mode, the transmitter output enters a high-impedance state so that this output can be sh ...


CD4538BC Dual Precision Monostable
CD4538BC Dual Precision Monostable

... internally latched. Two trigger inputs are provided to allow either rising or falling edge triggering. The reset inputs are active LOW and prevent triggering while active. Precise control of output pulse-width has been achieved using linear CMOS techniques. The pulse duration and accuracy are determ ...
Push-Button Reset IC with Voltage Supervisor
Push-Button Reset IC with Voltage Supervisor

... The MIC2786/MIC2787 are low-current, ultra-small, pushbutton supervisor reset ICs with an integrated supply voltage monitor. The device features two manual reset inputs and two reset outputs. The reset outputs are asserted and held when the supply voltage decreases below the factory programmed thres ...
Digitax ST Tech Data Iss2.book
Digitax ST Tech Data Iss2.book

... certified to the International Standard ISO 14001. Further information on the EMS, our Environmental Policy and other relevant information is available on request, or can be found at www.greendrives.com. The electronic variable-speed drives manufactured by Control Techniques have the potential to sa ...
Manual Models 1204M/05M/09M/21M
Manual Models 1204M/05M/09M/21M

ZTX751 Features Mechanical Data
ZTX751 Features Mechanical Data

... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
S2000-PI
S2000-PI

... If the S2000-PI is designed to operate as an RS-232-to-RS-485 converter, select the EOL resistance which is to be connected into the isolated RS-485 interface line by means of Isolated Line Terminator Connection Switch (see Figure 4). The resistance of the load resistors being connected can be 120 o ...
ZVP2106G Product Summary Features and Benefits
ZVP2106G Product Summary Features and Benefits

S280-70-10
S280-70-10

... display (no text message shown) and none of the LEDs will be illuminated. The control clock may require resetting if the operating power has been disconnected for more than thirty days. Refer to Service Information S280-70-4 (ProView 4.X.X) or S280-70-21 (ProView 5.X.X) Form 6 MicroprocessorBased Re ...
AD7490 数据手册DataSheet下载
AD7490 数据手册DataSheet下载

... The mark/space ratio for the SCLK input is 40/60 to 60/40. The maximum SCLK frequency is 16 MHz with VDD = 3 V to give a throughput of 870 kSPS. Care must be taken when interfacing to account for data access time, t4, and the setup time required for the user’s processor. These two times determine th ...
AD9240 数据手册DataSheet 下载
AD9240 数据手册DataSheet 下载

... suited for multiplexed systems that switch full-scale voltage levels in successive channels as well as sampling single-channel inputs at frequencies up to and beyond the Nyquist rate. The AD9240 also performs well in communication systems employing Direct-IF Down Conversion, since the SHA in the dif ...
la4x amplified controller
la4x amplified controller

... 10. Verify the electrical conformity and compatibility of the mains supply. Only connect the apparatus to an AC power outlet rated 100-240 V, 50-60 Hz, with the following current values: 20 A for 100-120 V, 10 A for 200-240 V. WARNING: An apparatus with CLASS I construction shall be connected to a m ...
ADE7754 数据手册DataSheet 下载
ADE7754 数据手册DataSheet 下载

... on the gain selections of the internal PGA. See the Analog Inputs section. All inputs have internal ESD protection circuitry. An overvoltage of ± 6 V can be sustained on these inputs without risk of permanent damage. ...
Evolution Variable Output
Evolution Variable Output

... All products are warranted to be free from defects in material and workmanship for a period of one year from the date of purchase if installed and used in strict accordance with the installation instructions. Liability is limited to the sale price of any products proved to be defective or, at manufa ...
A Microcontroller-Based Precision Xenon Strobe System
A Microcontroller-Based Precision Xenon Strobe System

3.3 volt logic characteristics and applications
3.3 volt logic characteristics and applications

... ouput, avoiding ground bounce and reducing transmission line noise. Because a FET is used, the output can be pulled all the way to GND, whereas a similar configuration with an NPN (as found in many competing technologies) would only pull-down to about 200mV, reducing noise immunity. The N-Channel pu ...
NON-CONTACT VOLTAGE TESTER (NCVT
NON-CONTACT VOLTAGE TESTER (NCVT

Rebirth of Negative-Sequence Quantities in Protective Relaying
Rebirth of Negative-Sequence Quantities in Protective Relaying

... Numerical relays can now reliably measure negative-sequence quantity and also provide the tools for the relay engineer to analyze negative-sequence components. The relay engineer can now confidently use negative-sequence quantities because they are measured and reported by these devices. Most manuf ...
Power MOSFET Linearizer of a High
Power MOSFET Linearizer of a High

... in high-frequency pulse-echo instrumentation. The power MOSFET linearizer is composed of a DC bias-controlled series power MOSFET shunt with parallel inductors and capacitors. The proposed scheme is designed to improve the gain deviation characteristics of the HVPA at higher input powers. By control ...
MAX34408/MAX34409 SMBus Dual/Quad Current Monitor General Description Features
MAX34408/MAX34409 SMBus Dual/Quad Current Monitor General Description Features

... External Sense Resistor Load-Side Connection for Amplifier 1. This pin should be left open circuit if not needed. ...
ServoOne Operation Manual Single-Axis System
ServoOne Operation Manual Single-Axis System

Choosing Components: Part 1 - Component Engineering Consultants
Choosing Components: Part 1 - Component Engineering Consultants

... requirement. One such parameter is the current gain of a BJT, called hFE or beta. Transistors with the same part number can have values of beta that span a range of 3-to-1 or more. What's more, the value of beta can change with temperature and even can change with collector current. The way to deal ...
AS Electricity Part I
AS Electricity Part I

< 1 ... 81 82 83 84 85 86 87 88 89 ... 1590 >

Power electronics



Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report