resonance analysis and soft-switching design of
... converter with coupled inductors are investigated in this paper. Due to the resonance participated by the voltage doubler capacitor, clamping capacitor, and leakage inductance of coupled inductors, the reverse-recovery problem of the secondary diodes is restrained within the whole operation range. B ...
... converter with coupled inductors are investigated in this paper. Due to the resonance participated by the voltage doubler capacitor, clamping capacitor, and leakage inductance of coupled inductors, the reverse-recovery problem of the secondary diodes is restrained within the whole operation range. B ...
______ is the ability to do work
... Energy: _______ is the ability to do work. There are many different kinds of energy. When you hold an object up off the ground, the object has ______ energy. When you drop the object, this energy is not lost, but is transformed into _______ energy. When the object hits the ground, all its energy is ...
... Energy: _______ is the ability to do work. There are many different kinds of energy. When you hold an object up off the ground, the object has ______ energy. When you drop the object, this energy is not lost, but is transformed into _______ energy. When the object hits the ground, all its energy is ...
Blizzard Bag 3
... There is a second effect, an extension of Faraday’s law. It is the same except that the roles of electric and magnetic fields are interchanged. It is one of nature’s many symmetries. This effect, which was advanced by the British physicist James Clerk Maxwell in about 1860, is known as Maxwell’s cou ...
... There is a second effect, an extension of Faraday’s law. It is the same except that the roles of electric and magnetic fields are interchanged. It is one of nature’s many symmetries. This effect, which was advanced by the British physicist James Clerk Maxwell in about 1860, is known as Maxwell’s cou ...
Calculation methods for lightning impulse voltage distribution in
... This method of splitting the entire transformer in a series of capacities offers the possibility to calculate the initial voltage repartition for any kind of connection between transformer’s coils and it also takes in consideration the different types of tap changer [2]. This calculation method can ...
... This method of splitting the entire transformer in a series of capacities offers the possibility to calculate the initial voltage repartition for any kind of connection between transformer’s coils and it also takes in consideration the different types of tap changer [2]. This calculation method can ...
Model Question Paper BASIC ELECTRICAL ENGINEERING
... produces 0.05Wb while the same current in Y produces 0.075Wb. Calculate (a) the mutual inductance, (b) the coupling coefficient, and (c) the percentage of flux produced by coil Y and linking with coil X. ...
... produces 0.05Wb while the same current in Y produces 0.075Wb. Calculate (a) the mutual inductance, (b) the coupling coefficient, and (c) the percentage of flux produced by coil Y and linking with coil X. ...
PART 1 – GENERAL - Hammond Power Solutions
... Protect from potential damage from weather and construction operations. Store so condensation will not form on or in the transformer housing and if necessary, apply temporary heat where required to obtain suitable service conditions. Handle transformer using proper equipment for lifting and handling ...
... Protect from potential damage from weather and construction operations. Store so condensation will not form on or in the transformer housing and if necessary, apply temporary heat where required to obtain suitable service conditions. Handle transformer using proper equipment for lifting and handling ...
printer-friendly sample test questions
... A. A magnetic field moving around a coil of wire causes an electric current, and an electric current in a coil of wire causes a magnetic field. B. The flow of electrons through either a series or parallel circuit is known as an electric current. C. Motors, telephones, and computers are all devices t ...
... A. A magnetic field moving around a coil of wire causes an electric current, and an electric current in a coil of wire causes a magnetic field. B. The flow of electrons through either a series or parallel circuit is known as an electric current. C. Motors, telephones, and computers are all devices t ...
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.