This paper porposes a new circuit for the CDI system to have a constant ignition power at the cngine speed range of 500 to 7500 rpm and the battery voltage range of 12 to 16 volts in the 4cylinder automobile.
The proposed CDI system has a closed-ollp ...
This paper porposes a new circuit for the CDI system to have a constant ignition power at the cngine speed range of 500 to 7500 rpm and the battery voltage range of 12 to 16 volts in the 4cylinder automobile.
The proposed CDI system has a closed-ollp with a PWM DC-DC converter controlled by the error signal between capacitor voltage and reference voltage. In order to decrease the capacitor charging time, the primary winging of ignition coil is mead to be shorted during capacitor charging.
An experimental system is fabricated and the results obtained therof are found to be satisfactory.