AC motor - Power Electronics Technology
... Most common AC motors use the squirrel cage rotor, which will be found in virtually all domestic and light industrial alternating current motors. The squirrel cage refers to the rotating exercise cage for pet animals. The motor takes its name from the shape of its rotor "windings"- a ring at either ...
... Most common AC motors use the squirrel cage rotor, which will be found in virtually all domestic and light industrial alternating current motors. The squirrel cage refers to the rotating exercise cage for pet animals. The motor takes its name from the shape of its rotor "windings"- a ring at either ...
transformer: three phase
... back to the generator so that primary coil A can take its required power from between its line and the neutral. It should be noted that if a single phase load is connected between the lines a and b, there will be a similar but less pronounced neutral shift which results in an overvoltage on one or m ...
... back to the generator so that primary coil A can take its required power from between its line and the neutral. It should be noted that if a single phase load is connected between the lines a and b, there will be a similar but less pronounced neutral shift which results in an overvoltage on one or m ...
S17-ViceChairReport
... Equivalent Winding Capacitance Network for Transformer Transient Analysis based on Standard Test Data Hybrid Electromagnetic Unified Power Flow Controller: A Novel Flexible and Effective Approach to Control Power Flow Gray Box Modeling of Power Transformer Windings for Transient Studies Advanced mod ...
... Equivalent Winding Capacitance Network for Transformer Transient Analysis based on Standard Test Data Hybrid Electromagnetic Unified Power Flow Controller: A Novel Flexible and Effective Approach to Control Power Flow Gray Box Modeling of Power Transformer Windings for Transient Studies Advanced mod ...
KB020
... at the same potential as the frame they are mounted on. A s the pole mounting frame is generally tied to ground for safety reasons, the tank of the capacitor units in a pole mounted rack will always be at ground potential. On one bushing capacitors the tank is electrically tied to the capacitor neut ...
... at the same potential as the frame they are mounted on. A s the pole mounting frame is generally tied to ground for safety reasons, the tank of the capacitor units in a pole mounted rack will always be at ground potential. On one bushing capacitors the tank is electrically tied to the capacitor neut ...
Three-phase Transformers
... • In our particular example, if E is the line-to-neutral voltage of the incoming line, the respective voltages across the windings of phase A are ...
... • In our particular example, if E is the line-to-neutral voltage of the incoming line, the respective voltages across the windings of phase A are ...
Design of 24-GHz 0.8-V 1.51-mW Coupling Current
... decreasing the quality factor of the resonant network in [1]–[7] , the injected are the most common solutions. With a larger voltage signal can be converted to a higher ac current to reach a larger locking range. However, an increase in the size of the tail transistor also increases the undesired pa ...
... decreasing the quality factor of the resonant network in [1]–[7] , the injected are the most common solutions. With a larger voltage signal can be converted to a higher ac current to reach a larger locking range. However, an increase in the size of the tail transistor also increases the undesired pa ...
Adding Heart to Your Technology
... • The orientation of the receiver is very important. The coil axis of the receiving coil has to be parallel with the magnetic flow created by transmitter in order to get optimum gain for successful heart rate measuring. In normal cases this means that the axis of the transmitting and receiving coils ...
... • The orientation of the receiver is very important. The coil axis of the receiving coil has to be parallel with the magnetic flow created by transmitter in order to get optimum gain for successful heart rate measuring. In normal cases this means that the axis of the transmitting and receiving coils ...
MFJ-249C User Manual REV1B
... offending interference can't be filtered out using common low-pass or band-pass circuitry because the L/C elements would act like lengths of transmission line and transform the impedance readings as a function of frequency. Increasing generator power output can, in some instances, overpower interfer ...
... offending interference can't be filtered out using common low-pass or band-pass circuitry because the L/C elements would act like lengths of transmission line and transform the impedance readings as a function of frequency. Increasing generator power output can, in some instances, overpower interfer ...
Near-Threshold Computing - EECS @ Michigan
... II . NEAR-THRESHOLD COMPUTING ( NTC) Energy consumption in modern CMOS circuits largely results from the charging and discharging of internal node capacitances and can be reduced quadratically by lowering supply voltage ðVdd Þ. As such, voltage scaling has become one of the more effective methods to ...
... II . NEAR-THRESHOLD COMPUTING ( NTC) Energy consumption in modern CMOS circuits largely results from the charging and discharging of internal node capacitances and can be reduced quadratically by lowering supply voltage ðVdd Þ. As such, voltage scaling has become one of the more effective methods to ...
V(t)
... the current decreases. If the potential over C is maximum, the current is zero. PHY232 - Remco Zegers - alternating currents and electromagnetic waves ...
... the current decreases. If the potential over C is maximum, the current is zero. PHY232 - Remco Zegers - alternating currents and electromagnetic waves ...
Resonant inductive coupling
Resonant inductive coupling or electrodynamic induction is the near field wireless transmission of electrical energy between two magnetically coupled coils that are part of resonant circuits tuned to resonate at the same frequency. This process occurs in a resonant transformer, an electrical component which consists of two high Q coils wound on the same core with capacitors connected across the windings to make two coupled LC circuits. Resonant transformers are widely used in radio circuits as bandpass filters, and in switching power supplies. Resonant inductive coupling is also being used in wireless power systems. Here the two LC circuits are in different devices; a transmitter coil in one device transmits electric power across an intervening space to a resonant receiver coil in another device. This technology is being developed for powering and charging portable devices such as cellphones and tablet computers at a distance, without being tethered to an outlet.Resonant transfer works by making a coil ring with an oscillating current. This generates an oscillating magnetic field. Because the coil is highly resonant, any energy placed in the coil dies away relatively slowly over very many cycles; but if a second coil is brought near it, the coil can pick up most of the energy before it is lost, even if it is some distance away. The fields used are predominately non-radiative, near fields (sometimes called evanescent waves), as all hardware is kept well within the 1/4 wavelength distance they radiate little energy from the transmitter to infinity.One of the applications of the resonant transformer is for the CCFL inverter. Another application of the resonant transformer is to couple between stages of a superheterodyne receiver, where the selectivity of the receiver is provided by tuned transformers in the intermediate-frequency amplifiers. The Tesla coil is a resonant transformer circuit used to generate very high voltages, and is able to provide much higher current than high voltage electrostatic machines such as the Van de Graaff generator. Resonant energy transfer is the operating principle behind proposed short range (up to 2 metre) wireless electricity systems such as WiTricity or Rezence and systems that have already been deployed, such as Qi power transfer, passive RFID tags and contactless smart cards.