The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Experimental Research to Improve the Output Characteristic of CDI System

CDI시스템의 출력발생향상을 위한 실험적 연구

  • 전병실 (전북대 공대 전자공학과) ;
  • 김종규 (전북대 공대 전자공학과)
  • Published : 1982.11.01

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Abstract

This paper proposes a new circuit for the CDI system to have a constant ignition power at the engine speed range of 500 to 7500 rpm and the battery voltage range of 12 to 16 volts in the 4-cylinder automobile. The proposed CDI system has a closed-loop 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 winding of ignition coil is made to be shorted during capacitor charging. An experimental suystem is fabricated and the results obtained thereof are found to be satisfactory.

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