Ignition Coil

1.   The ignition coil is actually a transformer (there are primary windings,   secondary windings, iron cores, insulating materials, etc.).

2.   Convert the 12-volt voltage of the car into a voltage of 20-30,000 volts. The   car ignition system uses this high voltage to ignite the mixture in the   cylinder.

3.   The role of the car ignition controller is to distribute the ignition high   pressure according to the ignition timing of each cylinder, the role of the   ignition coil is to change the low voltage DC into high piezoelectric, the   voltage can reach tens of thousands of volts, through the spark plug in the   cylinder breakdown air ionization to produce electric spark.