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Chapter 13: Inductance and Inductors
Chapter 13: Inductance and Inductors

... • Voltage across an inductance with constant dc current is zero • Since it has current but no voltage, it looks like a short circuit at steady state • For non-ideal inductors – Resistance of windings must be considered ...
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... In order to design high efficiency DC–DC integrated circuits, numerous methods are introduced. Firstly, a well-known strategy of the sleeping mode by shutting down the unused partial circuitŒ2 is used to reduce the power consumption; it can only enhance efficiency in standby mode but no power can b ...
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... obtain maximum power point tracking from the solar panel and wind generator generate the maximum power give the charging battery fed at cascade multilevel inverter. The output voltage waveform of a multilevel inverter is composed of the number of levels typically obtained from eleven levels. As the ...
BP5062A5
BP5062A5

... shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability th ...
UCC3895 CD Output Asymmetric Duty Cycle
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... and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary ...
The DatasheetArchive - Datasheet Search Engine
The DatasheetArchive - Datasheet Search Engine

... WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO ...
NE5534, NE5534A
NE5534, NE5534A

... WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO ...
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IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

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... voltage were again Vr-Vy. From the instrument nameplate, figure 3, it is seen that connection is incorrect. Assuming a standard rotation of R-Y-B the voltage phases used must be changed. At this point it should be remembered that the current transformers on each transformer in the group should be in ...
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... There are various applications varying from medium voltage to high voltage high power application which requires DC to AC conversion using multilevel inverters. The research on multilevel inverter [1] is ongoing further to reduce the number of switching devices count to reduce the manufacturing cost ...
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... turbine/generator and the number of magnetic poles in the generator (as well as the resistance within the rotor windings, known as slip, in the case of asynchronous machines). Although most synchronous generators have some form of voltage regulation, the voltage output will still be affected by shaf ...
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... controller. An inner feedback loop is used to regulate the STATCOM instantaneous reactive power current Iq shunt, reminding that this control is achieved only by controlling α, of the inverter output voltage relative towards the transmission line voltage, this technique makes it possible to maintain ...
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efficiency improvement of transmission lines with
efficiency improvement of transmission lines with

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48-Pulse Based SSSC (Static Synchronous Series
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... compared to the 24-pulse case. Thus, reducing notably the ripple existing in the dc voltage. An ideal VSI, would provide a sinusoidal output voltage and would have zero input current from the dc capacitor [1]. In this way, the dc capacitor would assist the VSI only during transient periods of the SS ...
Peak Power Tracking Control for Photovoltaic Array
Peak Power Tracking Control for Photovoltaic Array

... controller The panel power controller serves the following functions: (1) Regulating the I-V characteristic to achieve peak power tracking (2) Boosting the voltage (DC bus voltage must be at a certain level for the proper grid-side inverter operation) (3) Electrical isolation (for safety). ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

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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.
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