SYSTEM FOR SUPPLYING VOLTEAGE OF IGNITION APPARATUS

摘要

PURPOSE: A system for supplying voltage of an ignition apparatus is provided to prevent damage to an ignition apparatus due to high voltage by accurately controlling switching speed to generate high voltage which is induced from a primary side to a secondary side of an ignition coil. CONSTITUTION: A microprocessor(11) receives a control signal of a PWM form according to an enable signal supplied from the outside. A switching unit is switched according to the control signal of the microprocessor. The switching unit controls the current of an ignition coil(15). A switching controller is connected between the output of the switching unit and the input of the microprocessor. The switching controller generates a comparison signal to control switching speed and supplies it to the microprocessor.