Active Subwoofer Project
Amplifier circuit based on TDA2030, TDA2040, TDA2050 and LM1875. TDA2050 can be used instead of the TDA2030, TDA2040, LM1875,
Pcb Design Has 220K Volume Potentiometer Use To Control Amplifier Bass Volume The PCB Broad Has Bass Filter Pre-amp and Amplifier TL074 IC For Active Bass Pre-Amp
Getting the signal from the speaker partakes in one more advantage to be explicit grants you to keep a predictable volume extent of The Subwoofer to a sound system. Invigorating[strengthening] the subwoofer channel can be adjusted through a potentiometer. Resulting to isolating of the high-frequency signal is improved through the TDA2030, or something to that effect. The board is expected to allow the structure to work based on TDA2030, TDA2040 and TDA2050 [directly following displacing the connected parts]. This enables you to tune the outcome anyway you would like and your amp. The device was made as an enhancement to the errand 2x20W Amplifier,
Subwoofer Amplifer Circuit Diagram
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| Active Subwoofer Audio Power Amplifier Bass Filter Creativepluselectronics |
Stereo [R/L Input] signal is fed to the input terminal In (HEADER), utilizing C1 (100nF) and R2 (2.2M) in the principal channel, and C2 (100 nF), and R3 (2.2M) in the subsequent channel, it goes to the inverting input of the OpAmp operating IC1(TL074). Potentiometer C1 (220K) working in the feedback Amplifier IC1 permits gain control of whole system. Next the signal is fed to the channel components of the second legislature of IC2 (TL074), R4 (68K), R5 (150K), C3 (22nF) and C4 (4.7 nF), functions as a Butterworth filter. Through the circuit C5 (220nF), R6 (100K) signal goes to the supporter IC3 and afterward through C6 (10uF) at the input of the power amplifier UA1 (TDA2030).
The power supply is single supply 18V 5A to 26V 5A using C14 (1000uf /4700uf 35V) and C13 (100n-104) supply voltage bypass, to power Amplifier, R14 (10K) Potecting led Resistor (LED 1),The Transistor 7815 Regulator IC provide 15V regulated voltage to Power Bass Filter Pre-Amp TL074 IC (pin 4) and GND (pin 10,11)
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