PPS - Institut Mihajlo Pupin
... When a reciprocating motion has to be electrically produced, the use of a rotary electric motor, with a suitable transmission is really a rather roundabout way of solving the ...
... When a reciprocating motion has to be electrically produced, the use of a rotary electric motor, with a suitable transmission is really a rather roundabout way of solving the ...
www.tonydude.net - sdsu
... really is is an iron core (which is actually not necessary) with two wires (cores) wrapped around it. One coil handles the input current, and the other handles the output current. When you want the voltage to decrease, you wrap the coil around the core fewer times with the output coil than you do wi ...
... really is is an iron core (which is actually not necessary) with two wires (cores) wrapped around it. One coil handles the input current, and the other handles the output current. When you want the voltage to decrease, you wrap the coil around the core fewer times with the output coil than you do wi ...
RGch15
... electric motors: where motion is produced when a force acts on a current-carrying conductor placed in a magnetic field, including the induction motor in which the current is induced in the conductor Revision Notes: electric motor Summary Diagrams: Motors and generators, Alternating fields can make r ...
... electric motors: where motion is produced when a force acts on a current-carrying conductor placed in a magnetic field, including the induction motor in which the current is induced in the conductor Revision Notes: electric motor Summary Diagrams: Motors and generators, Alternating fields can make r ...
An Ultra-Simple Receiver For 6 Meters
... broaden the selectivity. In these self-quenched circuits, the REGENERATION CONTROL also varies the quench frequency. For AM and wide-band FM reception, set R7 (QUENCH WAVEFORM ADJUST) for minimum resistance and simply increase the REGENERATION CONTROL past the detector’s oscillation threshold to a p ...
... broaden the selectivity. In these self-quenched circuits, the REGENERATION CONTROL also varies the quench frequency. For AM and wide-band FM reception, set R7 (QUENCH WAVEFORM ADJUST) for minimum resistance and simply increase the REGENERATION CONTROL past the detector’s oscillation threshold to a p ...
3 rd Harmonic Currents - Maryland Public Service Commission
... • Stand alone filter sized to the transformer – 30kVA to 1,000kVA – Performs with all transformer types - TP-1, Phase Shift (Zig-Zag), K-Rate and New CSL-3 – Normally installed in 4 to 6 hours on an existing transformer – downtime typically less than 1 hour – can be switched hot – Installation done ...
... • Stand alone filter sized to the transformer – 30kVA to 1,000kVA – Performs with all transformer types - TP-1, Phase Shift (Zig-Zag), K-Rate and New CSL-3 – Normally installed in 4 to 6 hours on an existing transformer – downtime typically less than 1 hour – can be switched hot – Installation done ...
Printed Circuit Board Layout
... Since we're talking about coupling between a source and it's antenna on the same printed circuit board, we are not likely to have radiation coupling. Therefore, there are only three coupling mechanisms that we need to consider. Conducted coupling will only occur if the source we have identified dire ...
... Since we're talking about coupling between a source and it's antenna on the same printed circuit board, we are not likely to have radiation coupling. Therefore, there are only three coupling mechanisms that we need to consider. Conducted coupling will only occur if the source we have identified dire ...
Reducing EMI With Vishay`s IHLE Power Inductor
... The B field can be problematic for EMI in inductive components with one or more coils of wire that concentrate the B field and store that energy or transfer it from one winding to another, as in a transformer. Multiple coils provide for a much higher density of the B field, which can result in great ...
... The B field can be problematic for EMI in inductive components with one or more coils of wire that concentrate the B field and store that energy or transfer it from one winding to another, as in a transformer. Multiple coils provide for a much higher density of the B field, which can result in great ...
Slide 1
... 3rd order model of the process • If we have a lower order model of the system, implementation will be simpler and we have less calculation in the observer • By less calculation in the observer, we can discretize the observer with higher sampling frequency • Which state is candidate to be eliminated ...
... 3rd order model of the process • If we have a lower order model of the system, implementation will be simpler and we have less calculation in the observer • By less calculation in the observer, we can discretize the observer with higher sampling frequency • Which state is candidate to be eliminated ...
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.