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Transients and inductance
Transients and inductance

... U  12 (0.3 H)(2 A)2  0.600 J U = 0.600 J ...
VFD
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... • When three phase voltage enters a VFD unit it is converted to DC voltage. • The VFD has an internal DC bus voltage of 650 volts. ...
E-Flex™ - Square Deal
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... Output High (VOH = 3.8 V)  Driver off (iD1=0), Load on, but iD2= iD1 = 0.  No power dissipation in static high output mode (PH=0). Output Low (VOL = 0.05 V).  Driver on and operating at point T (vo = 0.05 V).  Load on and operating at point T’ where iD2(T’) = 0.087 mA.  Power dissipation PL = i ...
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chapter 05 Low Noise Amplifiers
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... transforming its value down to RS. The resulting circuit is shown below (left), where C1 represents the input capacitance of M1. (The input resistance of M1 is neglected.) Can this topology achieve a noise figure less than 3 dB? Consider the more general circuit in figure below (right), where H(s) r ...
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AN4058, BLDC Motor Control with Hall Effect Sensors Using the
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... Torque is sensed as a relationship of the current consumed by the motor. Torque can be measured individually for each of the three phases or as an average in the DC bus feeding the motor. The measurement of torque in the DC bus is simpler because it requires only one ADC channel and the software res ...
A Low-Power, Process-and-Temperature
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... Careful observation—The most important thing to do when checking a malfunctioning device is to be observant. Begin by talking to the person who reported the problem. You can obtain many clues from this person. Careful listening also is a good way to eliminate the user as a possible cause of the pro ...
Click Here to Download(PPT)
Click Here to Download(PPT)

... Integration of Pilot Directional Protection in the FID • The fault is in the reverse direction when Φ>0 • The fault is in the forward direction when Φ<0 • The current direction is determined by combining both positive sequence component method and negative sequence component method. • In the FREEDM ...
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... However, this energy storage is only momentary. The capacitor is charged and discharged twice during each cycle: Charge is delivered to the capacitor during two quarters of the cycle and is returned to the voltage source during the remaining two quarters. Therefore, the average power supplied by the ...
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... • Load connection: 1/4 inch quick-connect or bolted connection with 10-32 (M5) captive nut. • Line connection: 1/4 inch quick-connect or screw connection with clearance hole for #10 (M5) bolt. • Maximum alarm circuit current: 20 mA • Materials: Fuse housing - black thermoplastic, UL 94 V-0, 170ºC RT ...
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... it’s visible that the voltage on EP1 bus is greater than 0.1pu, so the wind farm keeps connected with the electrical grid. The active power injected in the grid is practically zero, on the other hand the reactive power injected in the grid, during 20ms, is greater than the reactive power injected in ...
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... Chain mode is selected if SDI is low during the CNV rising edge. In this mode, SDI is used as a data input to daisy-chain the conversion results of two or more ADCs onto a single SDO line. The digital data level on SDI is output on SDO with a delay of 16 SCK cycles. CS mode is selected if SDI is hig ...
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... Implies that the function that owns the data sends information periodically in groups. In this mode there usually is a delay between the time that new information i s available and when it is sent [MultiSpeak 2005] ...
Old Company Name in Catalogs and Other Documents
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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