Real-Time Dynamic Voltage Scaling for Low
... The task is released (put in a runnable state) periodically once every time units (actual units can be seconds or processor cycles or any other meaningful quanta), and it can begin execution. The task needs to complete its execution by its deadline, typically defined as the end of the period [18] ...
... The task is released (put in a runnable state) periodically once every time units (actual units can be seconds or processor cycles or any other meaningful quanta), and it can begin execution. The task needs to complete its execution by its deadline, typically defined as the end of the period [18] ...
UNIT – VI UNIT-6: SPECIAL MACHINES Explain the constructional
... high reactance and low resistance where as the auxiliary winding will have high resistance and low reactance. At stand still both the windings are connected in parallel across the supply. When the supply is given, the currents flow through the main winding (IM) and auxiliary winding (IA) and there ...
... high reactance and low resistance where as the auxiliary winding will have high resistance and low reactance. At stand still both the windings are connected in parallel across the supply. When the supply is given, the currents flow through the main winding (IM) and auxiliary winding (IA) and there ...
high voltage. instrument transformers.
... DESIGN AND MANUFACTURE Voltage transformers can have several secondary windings for metering and/or protection. The primary winding and all the secondary windings are wound around the same core, which is loaded with the total burden. ...
... DESIGN AND MANUFACTURE Voltage transformers can have several secondary windings for metering and/or protection. The primary winding and all the secondary windings are wound around the same core, which is loaded with the total burden. ...
Discussion on lightning impulse test procedure
... - We propose to change the first paragraph of indent b) of clause 10.3.1.1 of C57.12.90 as follows: "The impedance of some windings may be so low that the desired time to the 50% voltage point on the tail of the wave can not be obtained with available test equipment. For such cases, shorter waves ar ...
... - We propose to change the first paragraph of indent b) of clause 10.3.1.1 of C57.12.90 as follows: "The impedance of some windings may be so low that the desired time to the 50% voltage point on the tail of the wave can not be obtained with available test equipment. For such cases, shorter waves ar ...
balun basics primer
... b) a transmission line balun consisting of a bifilar coil of two wires wound around each other, with one end connected to ground, and c) a transmission line balun using magnetic core for additional low frequency coupling ...
... b) a transmission line balun consisting of a bifilar coil of two wires wound around each other, with one end connected to ground, and c) a transmission line balun using magnetic core for additional low frequency coupling ...
READY Ignition Systems Chapter.p65
... times per second. Standard AC transformers cycle at 60 times per second. This is the reason you cannot test a solid state ignitor with a standard ignition transformer tester. The testing of electronic ignitors is more complicated than testing the iron-core transformer. Before you perform any of thes ...
... times per second. Standard AC transformers cycle at 60 times per second. This is the reason you cannot test a solid state ignitor with a standard ignition transformer tester. The testing of electronic ignitors is more complicated than testing the iron-core transformer. Before you perform any of thes ...
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.