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Improved Algorithms of Direct Torque Control Method
Improved Algorithms of Direct Torque Control Method

... an increase of current component isq (torque) and a decrease of current component isd (flux). The influence of the other vectors on torque and flux changes is presented in Fig. 2c. Since the analysis is performed in rotating coordinates dq then, in accordance with equations (1), (2), the flux, volta ...
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... 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 ...
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... provides optimum transient response. An internal regulator enables operation with 4.75V to 5.5V or 7V to 28V input voltage ranges. The high switching frequency, up to 1.5MHz, allows the use of low-output inductor values and input capacitor values. This accommodates the use of PC-board-embedded plana ...
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... Instabilities are caused by the nonsymmetrical pressure distribution of the vibrating shaft, which creates a force component acting in the direction of the shaft orbit. This force feeds energy to the rotor and thus the shaft orbital movement is accelerated. Instability occurs in case the energy put ...
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Chapter 2 - Portal UniMAP

... – RC filters use combinations of resistors and capacitors to achieve a desired frequency response. – Most RC filters are of the low-pass or high-pass type. – Any low-pass or high-pass filter is effectively a frequency-dependent voltage divider. – An RC coupling circuit is a high-pass filter because ...
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... bandgap reference or an external reference voltage source. REFIO serves as the input for an external, lowimpedance reference source, and as the output if the DAC is operating with the internal reference. For stable operation with the internal reference, REFIO should be decoupled to AGND with a 0.1µF ...
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... first applied or when VDD dips below 1.7V (typ). This ensures that unwanted DAC output voltages will not occur immediately following a system startup, such as after a loss of power. The output glitch on startup is typically less than 50mV. ...
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... Note 1: Short one output at a time. Do not exceed the absolute maximum junction temperature. 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 ...
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KBJ6005G - KBJ610G 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 ...
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... The parameters in the data sheet give only a very limited indication of a device’s behavior in a system. For example, data sheets generally give only information regarding the behavior over the input and output (I/O) voltage range of 0 to 5 V, 3.3 V, and 2.5 V. The output currents specified over thi ...
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... The magnitudes of the input and output could be measured in units such as volts, amperes, or watts, and these could be rms, peak, peak-to-peak, average, or even possibly something else. In each case, however, the units in the numerator and denominator must be the same, and they determine whether the ...
INDUCTION MOTOR (squirrel cage)
INDUCTION MOTOR (squirrel cage)

... • Sinusoidal winding for each phase produces space sinusoidal MMF and flux • Sinusoidal current excitation (with frequency s) in a phase produces space sinusoidal standing wave MMF i(t) ...
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Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
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