Alireza Khaligh - IEEE Industry Applications Society
... resonant dc-dc step-up converter will be introduced which is capable of efficiently driving high-voltage EAP actuators in mobile microrobots. The converter utilizes resonant capacitors and a coupled-inductor as a soft-switched LC network to step up low input voltage. High-frequency soft-switching op ...
... resonant dc-dc step-up converter will be introduced which is capable of efficiently driving high-voltage EAP actuators in mobile microrobots. The converter utilizes resonant capacitors and a coupled-inductor as a soft-switched LC network to step up low input voltage. High-frequency soft-switching op ...
Transformers
... This can be achieved by using an alternating current. In order for as much power to be transferred as possible, the two circuits must be as closely magnetically linked as possible. This can be achieved by winding the two circuits into tight coils around an iron core. This is a transformer. ...
... This can be achieved by using an alternating current. In order for as much power to be transferred as possible, the two circuits must be as closely magnetically linked as possible. This can be achieved by winding the two circuits into tight coils around an iron core. This is a transformer. ...
AND8296/D Increasing Low Power Converter Efficiency with
... With energy requirements and costs constantly increasing, the demand for efficient power supplies obviously increases. Energy Star efficiency requirements for power conversion equipment are pretty much becoming the norm in the industry and world wide, and prospects indicate evolving and even tighter ...
... With energy requirements and costs constantly increasing, the demand for efficient power supplies obviously increases. Energy Star efficiency requirements for power conversion equipment are pretty much becoming the norm in the industry and world wide, and prospects indicate evolving and even tighter ...
relays
... default state of contacts – the contacts can be either open (switch = off) or closed (switch = on) by default a. the contacts of a normally open (NO) relay are open when no current is passed through the coil; passing current through the coil causes the contacts to close, allowing power to flow throu ...
... default state of contacts – the contacts can be either open (switch = off) or closed (switch = on) by default a. the contacts of a normally open (NO) relay are open when no current is passed through the coil; passing current through the coil causes the contacts to close, allowing power to flow throu ...
PHYSICS - KEE 2016 Electrostatics
... Self induction – Mutual induction – Self inductance of a long solenoid – Mutual inductance of two long solenoids Methods of inducing emf – (1) By changing magnetic induction (2) By changing area enclosed by the coil and (3) By changing the orientation of the coil (quantitative treatment) AC generato ...
... Self induction – Mutual induction – Self inductance of a long solenoid – Mutual inductance of two long solenoids Methods of inducing emf – (1) By changing magnetic induction (2) By changing area enclosed by the coil and (3) By changing the orientation of the coil (quantitative treatment) AC generato ...
97mc
... 33. Only a small fraction of the electrical energy supplied to a light bulb is converted into light energy. Which of the following explanations is/are correct? (1) Energy is absorbed by the glass wall of the bulb. (2) The resistance of the filament of the bulb is very high. (3) Most of the energy is ...
... 33. Only a small fraction of the electrical energy supplied to a light bulb is converted into light energy. Which of the following explanations is/are correct? (1) Energy is absorbed by the glass wall of the bulb. (2) The resistance of the filament of the bulb is very high. (3) Most of the energy is ...
Document
... diode voltage stress, suitable for green power-source conversion. By employing a coupled inductor and switched capacitor, the proposed converters achieve high step-up conversion ratio without adopting extremely high duty ratio or high turns ratio. The voltage spike that occurs on the power switch is ...
... diode voltage stress, suitable for green power-source conversion. By employing a coupled inductor and switched capacitor, the proposed converters achieve high step-up conversion ratio without adopting extremely high duty ratio or high turns ratio. The voltage spike that occurs on the power switch is ...
A Single Phase Adiabatic Clock Generator
... • Switches can therefore be relatively small and efficient. ...
... • Switches can therefore be relatively small and efficient. ...
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.