Transistor Assisted Ignition Circuit

By | September 24, 2023

Transistor Assisted Ignition Circuit

The transistor assisted ignition circuit is a type of electronic ignition system that uses a transistor to control the primary current of the ignition coil. This type of ignition system is more efficient than a conventional contact breaker ignition system, and it also produces a more consistent spark. ### How Does a Transistor Assisted Ignition Circuit Work? A transistor assisted ignition circuit consists of a transistor, a primary winding, a secondary winding, and a capacitor. The primary winding is connected to the battery, and the secondary winding is connected to the spark plug. The transistor is controlled by the ignition switch, and it switches the primary current on and off. When the ignition switch is turned on, the transistor turns on and allows current to flow through the primary winding of the ignition coil. This creates a magnetic field in the core of the ignition coil. When the transistor turns off, the magnetic field collapses and induces a high voltage in the secondary winding of the ignition coil. This high voltage is then sent to the spark plug, where it creates a spark that ignites the fuel in the engine. ### Advantages of a Transistor Assisted Ignition Circuit There are several advantages to using a transistor assisted ignition circuit over a conventional contact breaker ignition system. These advantages include: *

Improved efficiency:

A transistor assisted ignition circuit is more efficient than a contact breaker ignition system because it does not waste energy through arcing at the contact points. *

Reduced maintenance:

A transistor assisted ignition circuit requires less maintenance than a contact breaker ignition system because there are no moving parts to wear out. *

Improved performance:

A transistor assisted ignition circuit produces a more consistent spark, which can lead to improved engine performance. ### Disadvantages of a Transistor Assisted Ignition Circuit There are a few disadvantages to using a transistor assisted ignition circuit. These disadvantages include: *

Cost:

A transistor assisted ignition circuit is more expensive than a conventional contact breaker ignition system. *

Complexity:

A transistor assisted ignition circuit is more complex than a conventional contact breaker ignition system, and it may be more difficult to troubleshoot. *

Sensitivity to voltage:

A transistor assisted ignition circuit is more sensitive to voltage fluctuations than a conventional contact breaker ignition system. ### Conclusion The transistor assisted ignition circuit is a type of electronic ignition system that offers a number of advantages over a conventional contact breaker ignition system. These advantages include improved efficiency, reduced maintenance, improved performance, and a longer lifespan. However, transistor assisted ignition circuits are more expensive and complex than conventional contact breaker ignition systems. Ultimately, the best type of ignition system for a particular application will depend on the specific needs of the user. ## Additional Resources * [Transistor Assisted Ignition Circuit - Wikipedia](https://en.wikipedia.org/wiki/Transistor_assisted_ignition_circuit) * [Transistor Assisted Ignition Circuit - Spark Plugs.com](https://www.sparkplugs.com/learn/ignition-systems/transistor-assisted-ignition-circuit/) * [Transistor Assisted Ignition Circuit - AutoZone](https://www.autozone.com/diy/ignition-system/transistor-assisted-ignition-circuit/620538_000015914)


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