They can be classified according to their functioning as DC (direct current) amplifiers, audio frequency amplifiers, radio frequency amplifiers, and UHF, VHF, or SHF amplifiers. Amplifiers are generally used in communication systems that comprise analog signals. The signal may be voltage, power, or current. What are your thoughts ? Let me know through the comments.The amplifier is an electronic device that magnifies the strength of the input signal by transmitting the energy to an incoming input by means of any power source at a controlled level. TDA2003 is a single channel amplifier IC, I'm planning to build a stereo amplifier like 6283 amplifier circuit in future with two TDA2003 IC. I think it's just the matter of using a bigger capacitor at the audio output, a bigger heatsink and a suitable power supply. So why not improve it to get 20 watts out of it ? It also can continuously supply 3.5 amps to the load. The datasheet also mentions that it can run from a 24 volt power supply. The TDA2003 datasheet mentions that it can normally dissipate 20 watts of power. But you should always use a power source with lowest possible ripple to maintain audio quality. This amplifier is somewhat immune to input power noise or ripple. Power supply: You can use a power supply between 12 volts to 24 volts, capable of supplying up to 2 Ampere. You've to make sure that the power input and audio output wires are thick enough to carry sufficient power.Īlso don't forget to mount the TDA2003 IC on a heatsink with a bit of thermal compound. A piece of strip board is enough to make it sturdy. Making the amplifier board is rather easy, as it needs fewer components. You're going to need a power supply, connecting wires and other tools too. These components are just for making the tda2003 amplifier circuit board. Let's have a look at the part list, though I've mentioned value of each component in the circuit diagram before. You may want to use an effective volume and and bass-treble control circuit before the audio input. I'm using the 100nF polyester film capacitor to minimize the electrolytic capacitor's ESR. These parts are not absolute, you can easily replace a component with it's suitable substitute. There are several audio amplifier design based on TDA2003, you can modify your design a little.
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