• 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
ground fault neutralizer
ground fault neutralizer

... based on the signal wave shapes [3]. The instrument was triggered by the line supply to allow synchronicity between the PD signals and voltage applied to the cable under test. A schematic diagram of the system is shown Figure 4. For temporary or permanent monitoring applications similar hardware is ...
your New Radio
your New Radio

... A high forward resistance A very high PIV A negative resistance region A high forward current rating ...
PDF
PDF

... with low CO2 emissions are playing a key role. The railway industry expects the High Voltage Insulated Gate Bipolar Transistor (HVIGBT) to exhibit not only high reliability but also low power loss, high rated current, and high operating temperature. Mitsubishi Electric pioneered the development of a ...
Single-Supply Difference Amplifier
Single-Supply Difference Amplifier

78ET-2
78ET-2

... another circuit consisting of a resistor 20 ohms in series with a capacitor of capacitive reactance 15 ohms. Find the total current taken when this combination is connected to a 220 Volt/40 Hz supply, what capacitance placed in parallel will make the P.F. unity. Three coils each, having a resistance ...
S1-P210
S1-P210

... line communications has recently seen a revival of interest, with increased research activities, as well as new standards and products being introduced. The authors use here 150 KHz carrier for a single voice communication for hardware implementation and use different frequencies for transmitting mo ...
Document
Document

... • Components of sound include frequency, amplitude, timbre, duration, and envelope. • Fourier theory states that any periodic vibration (waveform), however complex, is comprised of, or can be created by combining, a series of simple vibrations whose frequencies are harmonically related and that chan ...
Modulation and simulation (MOD I1, Class A, S10) - IT
Modulation and simulation (MOD I1, Class A, S10) - IT

... E) What will happen to the wind resistance if you blow through both your straws (parallel) instead of just one straw with equal length ? Will the wind resistance be equal, less or greater? ...
EMI EMC unit 1
EMI EMC unit 1

20-A, 48-V Input, Isolated, 1/8th Brick DC-DC
20-A, 48-V Input, Isolated, 1/8th Brick DC-DC

OPAMPS1 - Electro Tech Online
OPAMPS1 - Electro Tech Online

... TIPS: 1. When u connect Vcc of Lm324 to gnd, then it will easily get heated. 2. The input cannot be greater than Vcc 3. You should remember that when using multiple voltages, Vcc should be greater than maximum voltage. Otherwise you will get wrong results. Why Comparator is preferred over Power Tran ...
Addendum to kWh Meter Installation Instructions For Use - E-Mon
Addendum to kWh Meter Installation Instructions For Use - E-Mon

... High voltage CTs reduce the primary current (amps) to a directly proportional 0~5 amp output. As an example, a 0~400 amp primary becomes a 0~5 amp proportional signal from the secondary output. This allows much smaller wiring to be utilized in the meter hookup. The high voltage CT secondary is insta ...
Ohms Law and Basic Circuit Theory
Ohms Law and Basic Circuit Theory

... across the switch. How much energy is lost per coulomb of electrons as they pass through the switch. Ohm’s Law was discussed previously. Apply this law to the light bulb. You know its resistance and you know the voltage drop across it. The current in the circuit is the same everywhere. You can check ...
Electric Circuits Basics activity
Electric Circuits Basics activity

... (work through this page using the links provided and submit through Moodle) Part 1. To investigate Ohm's Law V= I R (V-battery Voltage in Volts, R-electrical Resistance in Ohms, I-electrical current in amps) Start with V = I R, divide both sides of this equation by R to get a new equation for I in t ...
Electro Mechanical System
Electro Mechanical System

...  Transformers are one of the most useful electrical devices ever invented.  It can raise or lower the voltage or current in an ac circuit.  It can isolate circuits from each other.  It can change the apparent value of impedance.  The transformer enables us to transmit electrical energy over gre ...
Chapter 16
Chapter 16

... is labeled with a rating of 3 amps and a resistance of 40 ...
Electronic fluorescent lamp ballast
Electronic fluorescent lamp ballast

... on. It consists of two contact strips, one normal and one bimetallic, which are normally open, enclosed in a glass envelope filled with inert gas. When mains is applied to the circuit, the voltage is not sufficient to cause spontaneous ionisation of the gas in the main tube, and the lamp remains in ...
Series Active Filters
Series Active Filters

... case), the SAF based on the p-q theory inject a voltage in order to have a sinusoidal voltage wave form at the load side despite the presence of any perturbation in the source. It will also compensate all the non-active power, including the reactive an oscillating portion of active power, and the so ...
EECS 245 LAB 5 BIPOLAR TRANSISTOR CHARACTERISTICS
EECS 245 LAB 5 BIPOLAR TRANSISTOR CHARACTERISTICS

... To characterize an npn bipolar transistor, and measure the dc operating point and the ac performance of a single transistor amplifier. THEORY Bipolar transistors are semiconductor devices that contain two pn junctions, similar to the junctions in diodes. For the npn transistor the p type material is ...
Electronic fluorescent lamp ballast
Electronic fluorescent lamp ballast

... on. It consists of two contact strips, one normal and one bimetallic, which are normally open, enclosed in a glass envelope filled with inert gas. When mains is applied to the circuit, the voltage is not sufficient to cause spontaneous ionisation of the gas in the main tube, and the lamp remains in ...
Lab 2 - University of Colorado Boulder
Lab 2 - University of Colorado Boulder

... Let us review some of the fundamentals of electric circuits. The resistance R of a circuit element is defined as the ratio of the voltage drop across the element to the current flowing through it, R ...
2 chapter
2 chapter

... It is clear that modulated carrier wave contain more power as compared to unmodulated wave became of fact it contain two or more side band. The total power will depend upon the modulation index. ...
Triple Pulse Tester - Efficient Power Loss Characterization of Power Modules
Triple Pulse Tester - Efficient Power Loss Characterization of Power Modules

... turn-ON transient. The rise time and current slope are detected also according to [5], namely from 10% to 90% of the nominal value. DC-link voltage was around 1100 V and current around 1000 A. The turnOFF transient can be seen in Figure 10, where an 10% over-voltage is noticed due to the equivalent ...
Op Amp Circuits - Keith E. Holbert
Op Amp Circuits - Keith E. Holbert

FSL156MRIN Green-Mode Fairchild Power Switch (FPS™) FSL156MRIN — Green-Mode Fair
FSL156MRIN Green-Mode Fairchild Power Switch (FPS™) FSL156MRIN — Green-Mode Fair

< 1 ... 1158 1159 1160 1161 1162 1163 1164 1165 1166 ... 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