Ignition coils are arguably one of the most important components in a car's engine. They're responsible for taking the low-voltage energy from the battery and transforming it into the high voltage spark that ignites the air/fuel mixture in the combustion chamber. It is essentially the "spark plug" of your car and it plays a key role in ensuring your engine runs smoothly.
Despite its central importance to your car’s performance, many people don't know exactly what an ignition coil is or how it works. Let's take a closer look at the ignition coil and its role in the primary/secondary circuit.
An ignition coil is a type of transformer that uses metal cores and windings to convert low-voltage electricity from the battery into high-voltage electricity. This high-voltage electricity is then sent to the spark plugs where it is converted into a spark capable of igniting the air/fuel mixture in the combustion chamber.
The ignition coil is connected to the battery by two wires: the primary wire and the secondary wire. The primary wire supplies the coil with low-voltage electricity from the battery. The secondary wire connects the coil to the spark plugs, transporting the high-voltage electricity generated by the coil to the spark plugs.
This primary/secondary circuit is necessary for the ignition coil to work properly. When the voltage from the battery is applied to the primary wire, it creates a magnetic field within the coil. This magnetic field builds up until it is strong enough to break through the insulation between the primary and secondary wires. When this happens, a surge of high-voltage electricity is created and sent to the spark plugs via the secondary wire.
In short, an ignition coil is a type of transformer that takes the low-voltage electricity from the battery and transforms it into the high-voltage spark needed to ignite the air/fuel mixture in the combustion chamber. It consists of two wires, the primary wire which supplies it with electricity and the secondary wire which sends the high-voltage spark to the spark plugs. This primary/secondary circuit is essential for the ignition coil to work properly.
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