However, car engines have become much more high-speed and have a high degree of compression, which imposes additional requirements on the ignition system. In addition, in recent years these systems have become make claims to radically increase fuel efficiency and environmental friendliness of automobile engines. In this regard, as in. in this country and abroad there are numerous Research on the improvement of the classical ignition system or replace it with brand new, with the best characteristics. These studies are primarily aimed at eliminating the main shortcoming of the classical system – to reduce the secondary voltage at low and high speeds of the motor shaft, with pollution of candles, with a decrease in battery voltage, when pollution or burning of contacts chopper, etc. In Currently, the spread got two fundamentally different electronic ignition system – with the accumulation of energy in the inductance and capacitance.
The first of these is called the transistor and the second – the thyristor or capacitor (on the name the basic elements used in these systems). Transistor system consists of the same elements as the classic, and works on the same principle. Unlike a transistor system from classic is that it introduces a powerful effect transistor, which commutes the current ignition coils, contacts same chopper commute only a relatively small base current of the transistor. However, to fully realize positive characteristics of a transistor ignition system can not only with a special ignition coil. The latter circumstance limits the possibility of manufacturing a transistor system in amateur conditions.