07-Voltmeters
... So if that high resistance is connected in series than the current flow will be almost zero which means the circuit has become open. If it is connected in parallel, than the load impedance comes parallel with the high resistance of the voltmeter and hence the combination will give almost the same ...
... So if that high resistance is connected in series than the current flow will be almost zero which means the circuit has become open. If it is connected in parallel, than the load impedance comes parallel with the high resistance of the voltmeter and hence the combination will give almost the same ...
Wireless power and data transfer
... primary side and the pickup side plays an essential role in a well-designed WPT system. For instance, the functions such as output voltage feedback control, load detection, status monitoring, auto-tuning and multi-controllers synchronization are generally required in WPT systems [12-17], which can b ...
... primary side and the pickup side plays an essential role in a well-designed WPT system. For instance, the functions such as output voltage feedback control, load detection, status monitoring, auto-tuning and multi-controllers synchronization are generally required in WPT systems [12-17], which can b ...
workbook_m_g_answers..
... Publicly visible projects – people could see their success – demonstrated the efficiencies of AC power transmission. The final outcome did not depend on these projects – the deciding factor in the debate was the use of transformers so that electrical energy could be transmitted over long distances w ...
... Publicly visible projects – people could see their success – demonstrated the efficiencies of AC power transmission. The final outcome did not depend on these projects – the deciding factor in the debate was the use of transformers so that electrical energy could be transmitted over long distances w ...
LLC resonant half-bridge converter design guideline
... The harmonics of the switching frequency are then neglected and the tank waveforms are assumed to be purely sinusoidal at the fundamental frequency: this approach gives quite accurate results for operating points at and above the resonance frequency of the resonant tank (in the continuous conduction ...
... The harmonics of the switching frequency are then neglected and the tank waveforms are assumed to be purely sinusoidal at the fundamental frequency: this approach gives quite accurate results for operating points at and above the resonance frequency of the resonant tank (in the continuous conduction ...
PowerPoint presentation
... When a coil is formed of many wire turns, the magnetic fields around each wire add up to produce a strong electromagnet. One side of this magnet will be a North Pole while the other side will be a South Pole If the current in the electromagnet is reversed, the magnetic poles will swap sides. ...
... When a coil is formed of many wire turns, the magnetic fields around each wire add up to produce a strong electromagnet. One side of this magnet will be a North Pole while the other side will be a South Pole If the current in the electromagnet is reversed, the magnetic poles will swap sides. ...
Auto-Transformer
... shifts thereby making the three line-to-neutral (i.e. phase) voltages unequal. This difficulty of shifting neutral can be obviated by connecting the primary neutral (shown dotted in the figure) back to the generator so that primary coil A can take its required power from between its line and the neu ...
... shifts thereby making the three line-to-neutral (i.e. phase) voltages unequal. This difficulty of shifting neutral can be obviated by connecting the primary neutral (shown dotted in the figure) back to the generator so that primary coil A can take its required power from between its line and the neu ...
Electrical Narrative
... will be provided as in Air Handling Units when required by code. In accordance with NFPA 72 and the ADA, combination audible/visual notification devices will be installed throughout the facility to provide “public mode” notification of an alarm. Visual devices will be synchronized when more than one ...
... will be provided as in Air Handling Units when required by code. In accordance with NFPA 72 and the ADA, combination audible/visual notification devices will be installed throughout the facility to provide “public mode” notification of an alarm. Visual devices will be synchronized when more than one ...
Transformers and transmission
... Jo is a farmer, who has agreed to address the local community on the topic of power transmission. This topic has been chosen because the community is concerned about highvoltage power lines and is considering removing all of them and replacing them with lowvoltage alternatives. Jo has sketched out a ...
... Jo is a farmer, who has agreed to address the local community on the topic of power transmission. This topic has been chosen because the community is concerned about highvoltage power lines and is considering removing all of them and replacing them with lowvoltage alternatives. Jo has sketched out a ...
Preliminary GPMW5301A
... In addition, GENERALPLUS products are not authorized for use as critical components in life support devices/systems or aviation devices/systems, where a malfunction or failure of the product may reasonably be expected to result in significant injury to the user, without the express written approval ...
... In addition, GENERALPLUS products are not authorized for use as critical components in life support devices/systems or aviation devices/systems, where a malfunction or failure of the product may reasonably be expected to result in significant injury to the user, without the express written approval ...
design of high speed switched reluctance motors
... a quick industrial design the use of the FEM is not necessary since the lumped-parameter analysis is complete in itself [3,6]. It generates the geometry and winding designs and selects the material properties including the magnetization curve before the magnetic equivalent circuit calculation an ele ...
... a quick industrial design the use of the FEM is not necessary since the lumped-parameter analysis is complete in itself [3,6]. It generates the geometry and winding designs and selects the material properties including the magnetization curve before the magnetic equivalent circuit calculation an ele ...
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.