WEEK 10

Comparison Study of audio amplifier performances using Class AB, B and D topologies in portable audio devices.

For this week, I'm doing some discussion with my supervisor to design and construct the another circuit of Class AB audio amplifier using TDA 2003. Objective doing the another circuit is want to make comparison between using TDA 2003 and TDA 2030. 

Other that, I'm doing some research about this TDA 2003 and go buying all the components. Picture below is the circuit diagram that I'm being used:

Figure 14:Circuit diagram TDA 2003

Figure 15: Connection diagram 

Component:

1. IC = TDA 2003
2. Resistor = 15K, 3.3R, 220R and 1R
3. Capacitor = 10uF, 100uF, 100uF, 1000uF, 0.1 and 0.1
4. Speaker = 8 ohm
5. Heat sink
6. Variable resistance

WEEK 9

Comparison Study of audio amplifier performances using Class AB, B and D topologies in portable audio devices.

For week 9, I doing discussion with my supervisor for design n construct the circuit of Class AB Audio amplifier using TDA 2030. After successful design and construct this circuit, I'm test the circuit in lab to getting the result displays at Oscilloscope.

The pictures below is the circuit of Class AB Audio amplifier  using TDA 2030 that I'm successful design and construct:

Figure 13: The complete circuit of Class AB using TDA 2030

Figure 14: Testing circuit with Function generator and Oscilloscope

Figure 15: The result displays at Oscilloscope

For this circuit, the noise very high and so that we cannot hear the audio properly. 

WEEK 8

Comparison Study of audio amplifier performances using Class AB, B and D topologies in portable audio devices.

In this week, continue construct the circuit of Class B audio amplifier and test the circuit in lab. After finish and testing, I'm doing some troubleshoot for this circuit because I'm getting the low sound at the output (speaker).

After troubleshoot, the sound become clear And very good. The pictures below is the circuit of Class B audio amplifier that I'm have successful design and construct.

Figure 10: The complete circuit of Class B

Figure 11: Testing circuit with Function generator and Oscilloscope

Figure 12: The result display at Oscilloscope

Other that, doing some discussion with my supervisor and update the blog. Also doing some research to be placed in the report.

STUDY WEEK