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Full Text - DLINE Portal Home
Full Text - DLINE Portal Home

International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.X, pp. XX-XX
International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.X, pp. XX-XX

... It has been seen that many researchers proposed various IM models with different power electronics devices based inverters and control the speed of the IM. But harmonics always creates problems in the currents, voltage and developed electromagnetic torque. Therefore, the modeling of such motors is s ...
AN109 - Interfacing RF I/Q Modulators with Popular D/A Converters
AN109 - Interfacing RF I/Q Modulators with Popular D/A Converters

... that presents a high differential impedance (about 2.9k). This circuit generates an internal DC bias voltage of approximately 2.06V; the common mode DC voltage applied to the baseband terminals must match this voltage to within 40mV for proper operation. This corresponds to a source/sink current at ...
LMV831 数据资料 dataSheet 下载
LMV831 数据资料 dataSheet 下载

... As already mentioned the output is rail-to-rail. When loading the output with a 10 kΩ resistor the maximum swing of the output is typically 6 mV from the positive and negative rail. The output of the LMV831/LMV832/LMV834 can drive currents up to 30 mA at 3.3V and even up to 65 mA at 5V The LMV831/LM ...
BCP080T-70
BCP080T-70

... LIFE SUPPORT POLICY BEREX PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES WITHOUT THE EXPRESS WRITTEN APPROVAL OF BEREX. 1. Life support devices or systems are devices or systems which (a) are intended for surgical implant into the body, or (b) support or sustain l ...
Control And Modeling Of Doubly Fed Induction Machine For
Control And Modeling Of Doubly Fed Induction Machine For

... Wind power is the most reliable and developed renewable energy source. The share of wind power with respect to total installed power capacity is increasing worldwide. The doubly fed induction generator is an important type of wind generator (WG) due to its robustness and versatility. Its accurate an ...
TPA3113D2 数据资料 dataSheet 下载
TPA3113D2 数据资料 dataSheet 下载

... circuitry includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a "virtual" voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC detect circuit measures the frequency and amplitude of the PWM ...
3.3-V Hex Inverter/Clock Driver (Rev. A)
3.3-V Hex Inverter/Clock Driver (Rev. A)

... † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to ...
Durham Research Online
Durham Research Online

... powered by a voltage source of constant amplitude and frequency. The rotor windings of the doubly-fed induction generator are supplied from a PWM inverter. Both machines are of four-pole design and the inverter whose output determines the speed and reactive power operates in the constant volt/Hertz ...
Single-Supply, 10MHz, Rail-to-Rail Output, Low-Noise, JFET Amplifier OPA141 OPA2141
Single-Supply, 10MHz, Rail-to-Rail Output, Low-Noise, JFET Amplifier OPA141 OPA2141

... Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. Input ...
Engineering Science EAB_S_127_Ch4
Engineering Science EAB_S_127_Ch4

... If the switch is then moved back to position 2, current will start to flow through the resistor R, thereby discharging the capacitor, C The voltage across the plates of the capacitor will fall in time, until after a long time, the capacitor will have no charge at all and again, Vc = 0V ...
MEASURING VOLTS
MEASURING VOLTS

... However, one of the hot legs to neutral will register 208 volts. This is sometimes called the high leg, stinger leg, or crazy leg, and cannot be used for 115 volt circuits. NEXT ...
PWM Speed Controller
PWM Speed Controller

... There is an in-depth document here - http://homepages.which.net/~paul.hills/SpeedControl/SenseResistors.html - which describes sense resistors in detail. (the body of text of thiis link is copied in the next section. Some circuits you may see sample the current going through the main power MOSFET b ...
Full Text - AIRCC Journals
Full Text - AIRCC Journals

... higher controllability in power systems by means of power electronic devices. Several FACTS devices have been introduced for various applications worldwide. The basic applications of FACTS devices are [8, 9]: power flow control, increase of transmission capability, voltage control, reactive power co ...
Ohm`s law - Wikipedia, the free encyclopedia
Ohm`s law - Wikipedia, the free encyclopedia

... and how Ohm's Law is used Electrical circuits consist of electrical devices connected by wires (or other suitable conductors). (See the article electrical circuits for some basic combinations.) The above diagram shows one of the simplest electrical circuits that can be constructed. One electrical de ...
EE202 Powerpoint Slides
EE202 Powerpoint Slides

... those above. – High-pass filter - Passes frequencies above the critical frequency but rejects those below. – Bandpass filter - Passes only frequencies in a narrow range between upper and lower cutoff frequencies. – Band-reject filter - Rejects or stops frequencies in a narrow range but passes others ...
Aalborg Universitet Distributed Cooperative Secondary Control of Microgrids Using Feedback Linearization
Aalborg Universitet Distributed Cooperative Secondary Control of Microgrids Using Feedback Linearization

... where all DGs try to synchronize their terminal voltage amplitude to pre-specified reference values. For this purpose, each DG needs to communicate with its neighbors only. The required communication network can be modeled by a communication graph. In this section, first, a preliminary on the graph ...
STGP19NC60S
STGP19NC60S

... STGP19NC60S 20 A, 600 V fast IGBT ...
Aalborg Universitet Stationary Frame Current Control Evaluations for Three-Phase Grid-Connected
Aalborg Universitet Stationary Frame Current Control Evaluations for Three-Phase Grid-Connected

... high-quality power to be injected to the grid [1-4]. In a GCI, an L filter or an LCL filter is usually used as an interface between the inverter and the grid. However, if only an inductor is used, high-frequency (HF) switching is needed to ensure that no excessive switching ripples are generated fro ...
Products for marine applications Performance and reliability in
Products for marine applications Performance and reliability in

... The PCS 6000 OPS frequency converters are an economic and efficient solution for converting grid electricity to the appropriate frequency needed onboard, thereby allowing ships to be connected to the public grid. The majority of ships operate with a 60 Hz supply while the local grid in many parts of ...
C-Bus 8 Channel Dimmer, DIN Rail Series
C-Bus 8 Channel Dimmer, DIN Rail Series

... change in brightness often associated with typical phase control dimmers. Similarly, the incoming frequency is monitored and adjustments are made to ensure synchronisation to the mains is maintained, within the range 47 - 63Hz. • Linearised brightness control. In conventional phase control dimmers, ...
MT-037: Op Amp Input Offset Voltage
MT-037: Op Amp Input Offset Voltage

PSoC Power Supervision DWR Pr..
PSoC Power Supervision DWR Pr..

... Trimming voltage accuracy is critical to maintain optimal voltage ranges The latest FPGAs and DSPs have low-voltage rails (1 V and below), requiring… Sub-0.5% (5-mV) monitoring accuracy (expensive analog ICs) Sub-1.0% (10-mV) real-time trimming accuracy (more expensive analog ICs) Analog ICs from mu ...
01 - Transformer
01 - Transformer

OPA3691 Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable FEATURES
OPA3691 Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable FEATURES

... delivers a high output current with minimal voltage headroom and crossover distortion. This gives exceptional singlesupply operation. Using a single +5V supply, the OPA3691 can deliver a 1V to 4V output swing with over 120mA drive current and 150MHz bandwidth. This combination of features makes the ...
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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)
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