The third generation OLEV, uses ultra-slim W-shaped ferrite cores in the primary coil to reduce the amount of ferrite used to 1 / 5 of gen 2 and to remove the need of return cables.
32.
When the main relay is activated the battery voltage is reformed to 400 V DC which is stored in a capacitor . 400 V voltage is connected to one of the poles of the primary coil in the four spark coils.
33.
To fix these issues, KAIST came up with the generation 2 OLEV . In the gen 2 OLEV, the current in the primary coil was doubled to create a stronger magnetic field that allows for a larger air gap.
34.
To do that, induction coils use a magnetically activated vibrating arm called an " interrupter " or " break " ( " A " ) to rapidly connect and break the current flowing into the primary coil.
35.
When the ECU is grounding pin 9, the primary coil for the first cylinder is grounded ( via the ignition cassettes B + intake ) and 400 V is transformed up to a maximum of 40 kV in the secondary coil for cyl . 1.
36.
The impedance of the loudspeaker on the secondary coil of the transformer will be transformed to a higher impedance on the primary coil in the circuit of the power pentodes by the square of the turns ratio, which forms the " impedance scaling factor ".
37.
When used in a switching transformer, one winding of the bifilar coil is used as a means of removing the energy stored in the stray magnetic flux which fails to link the " primary coil " to the " secondary coil " of the transformer.
38.
These typically consist of a primary tank circuit, a series LC ( inductance-capacitance ) circuit composed of a high-voltage capacitor, spark gap and primary coil, and the secondary LC circuit, a series-resonant circuit consisting of the spun metal or flexible aluminum ducting.
39.
Unlike the far field wireless power transmission systems based on traveling electro-magnetic waves, WiTricity employs near field resonant inductive coupling through magnetic fields similar to those found in transformers, except that the primary coil and secondary winding are physically separated, and tuned to resonate to increase their magnetic coupling.
40.
Should a high-frequency arc strike the exposed primary coil while, at the same time, another arc has also been allowed to strike to a person, the ionized gas of the two arcs forms a circuit that may conduct lethal, low-frequency current from the primary into the person.
