A typical car ignition system does not require 40,000 volts. It usually operates around 12,000 volts. A common way to produce the high voltage required for an ignition system is through an ignition coil. An ignition coil is a type of transformer that uses electromagnetic induction to increase the voltage of the electrical current from the battery. The ignition coil consists of a primary winding and a secondary winding. The primary winding is connected to the battery, while the secondary winding is connected to the spark plug. When the ignition switch is turned on, current flows through the primary winding, creating a magnetic field. This magnetic field then induces a current in the secondary winding, which is much higher than the voltage in the primary winding. This high voltage is then sent to the spark plug, where it jumps the gap between the center electrode and the ground electrode, creating a spark that ignites the air-fuel mixture in the combustion chamber.
To achieve a voltage of 40,000 volts, a specialized step-up transformer or voltage multiplier circuit can be employed. These circuits involve multiple stages of transformers or capacitors to progressively increase the voltage. However, it's worth noting that such high voltages are typically not necessary for automotive ignition systems and can potentially lead to safety risks and damage to components.
