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Performance Optimization of Induction Motors During Voltage
Performance Optimization of Induction Motors During Voltage

... keep the current constant at the preset value during starting period. Current in the third line can be deduced from the two signals by the C. These will then be used for protection purposes against overload, unbalanced operation, and faults. The three line-to-line voltage signals are used only for z ...
Obstacles Associated with Winding Resistance Measurements of
Obstacles Associated with Winding Resistance Measurements of

... winding resistance data on a LTC that is exhibiting incomplete saturation. In both examples, early measurements are higher than expected. By viewing the plotted data, it is clear that core saturation has not occurred, and several measurements at the beginning of the test should be ...
Using the Loss-Free Resistor concept to design a simple ac
Using the Loss-Free Resistor concept to design a simple ac

... Given that HB-LEDs are diodes, the default method for driving them is by controlling the dc forward current through the semiconductor device. If the primary energy source is the ac line, then some type of ac-dc converter must be placed between the line and the HB-LEDs [3-6]. Furthermore, it is a wel ...
power strips - Tributaries Cable
power strips - Tributaries Cable

... excessive heat buildup that could occur during an abnormal surge condition. In the event of a catastrophic surge, such as one that lightning might produce, the Power Strip is additionally protected by dual temperature fuses that open the circuit and disconnect the power strip from the AC line. This ...
The LW6-180 Amplifier
The LW6-180 Amplifier

... equal to the screen-voltage rating) is generally lower than in a pentode connection (where you can use a lower supply for screen grids). The inherently low screen-voltage rating of horizontal-deflection tubes led to some disagreeable inconveniences, such as a lot of tube abuse from one side, and an ...
THAT Corporation Design Note 108
THAT Corporation Design Note 108

... varies. This circuit is essentially a limiter operated most of the time above its threshold. Gain control is accomplished by connecting the output of the RMS detector to the negative control port of the VCA. In a feed forward topology, the gain is then reduced by the same amount that the input level ...
900 MHz AW900m - Module
900 MHz AW900m - Module

SINPAC Switches: Brief Operating Description Mounting
SINPAC Switches: Brief Operating Description Mounting

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Trapping and Manipulating Neutral Atoms with Electrostatic Fields
Trapping and Manipulating Neutral Atoms with Electrostatic Fields

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MAX5932 Positive High-Voltage, Hot-Swap Controller General Description Features

... The MAX5932 is a fully integrated hot-swap controller for positive supply rails. The device allows for the safe insertion and removal of circuit cards into live backplanes without causing glitches on the backplane power-supply rail. During startup the MAX5932 acts as a current regulator using an ext ...
Power Minimization in QoS Sensitive Systems , Student Member, IEEE
Power Minimization in QoS Sensitive Systems , Student Member, IEEE

... receives a task of generally varying complexity. The cumulative sum of tasks for a process can be depicted as a demand curve imposed on the system. The system serves the task sequentially by allocating resources during each time period to one of the processes. The cumulative sum of the processed dat ...
experiments with circuits - Mrs-oc
experiments with circuits - Mrs-oc

A new CMOS logarithmic current generator
A new CMOS logarithmic current generator

... A logarithmic function is a nonlinear function in which the output is proportional to the logarithm of the input. The circuits performing such characteristics are widely used in many applications; these include but not limited to medical equipment, instrumentation, telecommunication, active filters, ...
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AZ22308312

... pull- down network in each CMOS gate as shown in Fig.1(b) In this arrangement, one of the LCTs is always “near its cutoff voltage” for any input combination. This increases the resistance of the path from Vdd to ground, thereby decrease in leakage currents. The significant feature of LECTOR is that ...
Variable Resistors - School
Variable Resistors - School

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STFI10NK60Z

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DPA-Switch - akinoid.com
DPA-Switch - akinoid.com

Amplifier - Bodzio Software
Amplifier - Bodzio Software

... There are two enclosures, housing all amplifier modules. The two subwoofer amplifier modules are housed in their own, separate enclosure with large heat-sinks, and it’s own power supply. All other modules 50W (7 of them) and 100W (3 of them) modules are housed in a matching-size, separate enclosure. ...
IMT17 Features Mechanical Data
IMT17 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 ...
Secondary Wiring Methods
Secondary Wiring Methods

Features Mechanical Data
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 ...
Digital Metronome
Digital Metronome

... My circuit worked as I intended which was for it to be an “ electronic metronome device which produces equally spaced sounds at a variable speed which is displayed in beats per minute”. I have also met all of my original objectives: ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

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Alternating current



Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).
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