Bass amplifier circuit

If you have no sufficient bass in your music system, you can consider using this simple DIY circuit to enhance bass. In this project, we will design a bass amplification circuit with TDA2030. The TDA 2030 is used as an audio power to generate a 14W output, and the output can be output to 30W after another TDA2030. Embryin Audio jack x 1 TDA2030 x 1 Resistance 100kΩ (3), 4.7kΩ (1), 10Ω (1) Capacitor 100mf (1), 0.1MF (2), 2.2mf (2), 22mF (1) Diode in4007 x 1 Speaker x 1 Battery 12V (or use SMPS directly) 22kΩ variable resistance x 1 TDA2030 features and pin detail The TDA2030 can work at a total harmonic distortion of 9V to 24V and 0.08. It produces 18W output. The following is a top view and a pistogram. Circuit diagram and working principle The above is a circuit diagram of the TDA2030 amplifier circuit. We train a 2.2uf capacitor with the same direction of TDA 2030, and the high pass filtering of the role here. This is only allowed to pass through the high frequency audio signal. There is a resistor between the pins 2 and 4. This feedback resistor is used to obtain gain. If the feedback resistance options are inappropriate, the entire bass amplifier cannot work properly. In the circuit diagram, the resistance (R1) and the capacitor (C2) are connected in series on the pin 2 of the TDA 2030, and the purpose is to suppress noise in the audio signal. No. 3 lead. The output of the TDA2030 is connected in series with a 2200UF capacitor, allowing the zoomed signal to the speaker. There is a 100kΩ resistor in the 5th pin, and its effect is a partial pressure offset. This circuit can output 12W. We can use 4 to 6 Ω speakers. If we use the radiator to reduce the high temperature of TDA2030, the effect will be better. As for the volume adjustment, it depends on the variable resistance of 22kΩ. Connect the audio signal line from any end of the variable resistor, then connect the intermediate pin to the C1 capacitor and input as an op amp, and the remaining end is directly grounded. By changing the resistance of variable resistors, we can adjust the volume of the TD2030 bass circuit. The IN4007 diode is used to avoid the polarity of the IC to be burnout, and the two capacitors C7 and C6 are used to eliminate noise in the power source. Resistors R6 and C5 also eliminate unnecessary noise of the speaker end. As for how to connect 3.5mm audio jack, explain a line with the ground pin of the jack, and the other line is connected to the left or right pin. The blue line in the following picture is grounded, the yellow line is an audio signal. This can be connected to the mobile phone or the headphone interface on the notebook.

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