In the amplifier circuit made with TDA2003, the output power is 12w, the operating voltage is between dc 8v … 18v, the current drawn by the integrated circuit at full power is 3.5 amps, it changes according to this operating voltage, it draws 50mA current at idle. TDA2003 amplifier circuit has a printed circuit, schematics, layout drawings and a list of materials. It is a very simple amplifier circuit, and the integrated circuit price is cheap.
12 W mono audio car amplifier (TDA2003)
Supply voltage: 8 – 18 volts, standard 14.4 volts.
Maximum current consumption: 3.5 amps.
Current consumption when idle: 50 mA.
Power output, for
(Vcc = 14.4 v, Bias = 1.6 Ohm, Thd = 10%, F = 1 kHz): 12 W.
Distortion coefficient, (Bias = 4/2 Ohm, Pout = 1… 10 W, F = 1 kHz): 0.15%.
Au amplification factor: 40.
Input resistance: 150 k.
Reproduced frequency range: 40…15000 Hz.
Output resistance: 2 – 8 Ohm.
PCB dimensions: 58 X 25 mm.
| comp. | vaule | pcs. |
| C1 | 10 uF |
1
|
| C2 | 470 uF |
1
|
| C3, C6 | 1000 uF |
2
|
| C4 | 0,033 uF |
1
|
| C5, C7 | 0,1 uF |
1
|
| CI 1 | TDA2003 |
1
|
| R1 | 39 Ohm |
1
|
| R2 | 220 k |
1
|
| R3 | 2,2 Ohm |
1
|
| R4 | 1 Ohm |
1
|
Published: 2011/06/07 Tags: audio amplifier circuits, ic amplifier, simple circuit projects
TDA2005 amplifier circuit 22W 12V
TDA2005 amplifier circuit with the output power of the DC working voltage 6V 22w 18v supply from a single source that can be operated on battery in the car is already being used in many car stereo.
The current drawn by the circuit (max) – 3 Amps
No-load current drawn – 75 mA
Frequency band – 40 … 20,000 Hz
Total Harmonic Distortion – 1%
Sensitivity – 300 mV
Amplification factor – 50 dB