This is the simplest design circuit for converting a CD ROM drive of your computer to a Audio CD player. The minimum requirement for the player is that, it should have a audio output and skip button. Luckily most of the CD ROMs are equipped with both of these. This is the figure of the circuit.
The operation od the circuit is when CD ROM drive needs two voltages, 12V & 5V for its operation. So the main objective is to build a suitable power supply for the CD ROM drive. The IC1 (7812) together with associated components produce a regulated 12V DC. The IC2 (7805) together with associated components produce a regulated 5V DC. These voltages as well as ground can be connected to the corresponding voltage pins of the CD ROM drive using a male type CD ROM drive power connector. The 12V can be connected to the yellow wire of connector, 5V to red wire and GND to black wire as shown in figure1.Now the power supply is ready.
Power up the circuit after connecting the power connector to the CD ROM drive. Now the power LED of the drive will glow. Insert the audio CD. Now the music will be available at the audio output socket of the drive. It can be heared using a head phone. The skip button of the drive can be used to play next song. For car stereo applications you don’t need the transformer, rectifier and the 7812 regulator.12V will be available from battery. You just need to produce a 5V from it using a 7805 based regulator. Connect the corresponding voltages to the connector as shown in figure 1 and connect the connector to drive. The amplifier for the car audio CD player must be one operating from 12V.
The operation od the circuit is when CD ROM drive needs two voltages, 12V & 5V for its operation. So the main objective is to build a suitable power supply for the CD ROM drive. The IC1 (7812) together with associated components produce a regulated 12V DC. The IC2 (7805) together with associated components produce a regulated 5V DC. These voltages as well as ground can be connected to the corresponding voltage pins of the CD ROM drive using a male type CD ROM drive power connector. The 12V can be connected to the yellow wire of connector, 5V to red wire and GND to black wire as shown in figure1.Now the power supply is ready.
Power up the circuit after connecting the power connector to the CD ROM drive. Now the power LED of the drive will glow. Insert the audio CD. Now the music will be available at the audio output socket of the drive. It can be heared using a head phone. The skip button of the drive can be used to play next song. For car stereo applications you don’t need the transformer, rectifier and the 7812 regulator.12V will be available from battery. You just need to produce a 5V from it using a 7805 based regulator. Connect the corresponding voltages to the connector as shown in figure 1 and connect the connector to drive. The amplifier for the car audio CD player must be one operating from 12V.
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