Raid Anam  Gaib, Ahmed Bassam  Aziz, Ahmed Ibrahim Jaber  Alzubaydy, 
    The Effect of Internal Ignition Coil on Combustion Engine Performance,
    Journal of Engineering and Applied Sciences,
    Volume 14,Issue 3,
    2019,
    Pages 898-904,
    ISSN 1816-949x,
    jeasci.2019.898.904,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2019.898.904)
    Abstract: All internal combustion engines are using spark ignition system; this system contain inductance
converts low voltage to high voltage “thousand voltes”. At this state the principles of system are the primary
coil of ignition system has a heavy wire with few turns. The secondary winding consists thousand turns of
small wire. Its mean the energy that stored in the magnetic field of core will be same as the energy which
transformed from spark plug. This design will give spark reaches spark plug at limited times to ignite the fuel
engine. This system is working at high efficiency. The ignition coil steps up 12 V battery to high voltage
required in combustion engine to make the current jumping from low to high current at spark terminal. By used
technical power electronic 4 MOSFET as bridge making the EMF reach more than 25000 V in the modern ignition
system high resistance is simulate and present in MATLAB (Simulink and code).
    Keywords: The Effect of Internal Ignition Coil on Combustion Engine Performance