Wednesday, October 11, 2017

Electronic Wiring Diagram Enhanced Capacitive Discharge Ignition (CDI) for Two and Three Wheelers

RealAutoTips. - This is one electronic wiring diagram for you who want to explore your knowledge in automotive electronic in this time with the presenting of enhanced CDI circuit for two and three wheelers.

In here, beside we will show you the electronic wiring diagram of Enhanced Capacitive Discharge Ignition (CDI) for Two and Three Wheelers with electronic component parts and also the global description, we also will give you the link to read more of this electronic wiring diagram.

Electronic wiring diagram

Figure 1. Electronic Circuit of Enhanced Capacitive Discharge Ignition (CDI) for Two and Three Wheelers (Source: Homemade-Circuit)

Component Parts

  1. 555 IC
  2. Resistors
  3. Capacitors
  4. Variable resistor
  5. LED
  6. Diodes
  7. SCR
  8. Transistor
  9. Transformer


This is an electronic wiring diagram of enhanced Capacitive Discharge Ignition (CDI) for Two and Three Wheelers for you. Accordingly Homemade-Circuit blog that also published this circuit describe that the following post describes a simple capacitive discharge ignition system which derives its operating voltage from the battery instead of the alternator for generating the igniting sparks. Since it works independently from the alternator voltage, it functions more efficiently and consistently, enabling a much smoother ride of the vehicle even at lower speeds.

A capacitive discharge ignition unit also called the CDI unit is the modern alternative for the age old contact breakers, which were quite crude with their functions and reliability.

The modern CDI is an electronic version of the contact breaker which uses sophisticated electronic parts for generating the required arching across the spark plug terminals.

The concept is not complicated at all, the section of the alternator provides the required 100 to 200V AC to the CDI circuit, where the voltage is intermittently stored and discharged by a high voltage capacitor through a few rectifying diodes.

These rapid bursts of high voltage discharges are dumped into the primary winding of an ignition coil where its appropriately stepped up to many thousands of volts for acquiring the required arcing, which ultimately functions as the igniting sparks across the connected spark plug contacts. Read more HERE.

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