32w (50w music power) mono amplifier circuit uses tda2050 amplifier integrated circuit, working voltage is quite flexible (between 10 volts … 50 volts) and can be fed from a single source.
Current drawn by the circuit (max): 5 amps Current drawn in idle: 30ma … 55 mA input resistance 22k frequency range 20khz … 25kHz There are pcb, schema, layout drawings and material list of TDA2050 amplifier circuit
Supply voltage 10…50 Vdc
maximum current 5 A
Idle current 30…55 mA
Output power, Thd 0.5% and Vcc = 36 V, = 4 Ohm 28 W
Output power, Thd 0.5% and Vcc = 36 V, = 8 Ohm 18 W
Output power, Thd 0.5% and Vcc = 44 V, = 8 Ohm 25 W
Output power, Thd 10% and Vcc = 36 V, = 4 Ohm 35 W
Output power, Thd 10% and Vcc = 36 V, = 8 Ohm 22 W
Output power, Thd 10% and Vcc = 44 V, = 4 Ohm 32 W
Harmonic distortions Vcc = 36v, Rout = 4 Ohm, F =1 kHz, Pout = 0.1 – 24 W 0.03 %
Harmony distortions Vcc = 44v, Rout = 8 Ohm, F =1 kHz, Pout = 0.1 – 20 W 0.02 %
Amplification factor 30 dB
Input resistance 22 k
Frequency range 20…25k Hz
| Parts | Name | Pcs |
| C1, C5 | 0.47 uF |
2
|
| C2 | 22 uF, 50v |
1
|
| C3 | 100 uF, 50 v |
1
|
| C4 | 1000 uF, 50 v |
1
|
| C6 | 2200 uF, 50v |
1
|
| C7 | 0,1 uF, 100 v |
1
|
| IC1 | TDA2050 |
1
|
| R1, R2, R4, R5 | 22 k |
1
|
| R3 | 680 Ohm |
1
|
| R6 | 2,2 Ohm |
1
|
Published: 2011/06/07 Tags: audio amplifier circuits, ic amplifier, simple circuit projects
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