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special thanks to ALAMGIR NASIR
https://www.facebook.com/profile.php?id=100001497433614
Who helped me make this project
INTRODUCTION
The aim of the project was to make a stereo audio amplifier. in addition to this additional features should be that it should have volume control, bass control,treble control and left right control too.
For this project i used
1- Operational amplifier TDA2050 which is used in the main amplifier circuit
2- TDA1524 which is used in the pre-amplifier of the circuit.
3- I used the split DC power ±22V as an external supply. The main advantage of the split supply over the single supply is that it is filtered from both sides (+) and (-) terminals and has the proper grounding system which are caused to decrease the output noise of amplifier but u can use single supply too.
https://www.facebook.com/profile.php?id=100001497433614
Who helped me make this project
INTRODUCTION
The aim of the project was to make a stereo audio amplifier. in addition to this additional features should be that it should have volume control, bass control,treble control and left right control too.
For this project i used
1- Operational amplifier TDA2050 which is used in the main amplifier circuit
2- TDA1524 which is used in the pre-amplifier of the circuit.
3- I used the split DC power ±22V as an external supply. The main advantage of the split supply over the single supply is that it is filtered from both sides (+) and (-) terminals and has the proper grounding system which are caused to decrease the output noise of amplifier but u can use single supply too.
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Signing UpStep 1Pre-amplifier
PRE-AMPLIFIER
The arrangment shown in the diagram is the pre-amplifier.The circuit is designed as an active stereo-tone/volume control for car radios, TV receivers and mains-fed equipment.
It includes functions for bass and treble control, volume control with built-in contour (can be switched off) and balance.
All these functions can be controlled by d.c. voltages or by single linear potentiometers.
It starts from the input power supply integrated into the 3 pin is the positive voltage and negative voltage to pin 8. This circuit will have only R and C classes of devices to filter out frequencies in different area.When the signal from the sound source enters into the pin 15 of IC1, the INPUT signal is coupling through the C1 and C2 signals of each channel.
Left and the right, then the IC will amplify signals with C6 and C4. C5 and C3 act as base (low frequency control) with VR1-VR4 to adjust the Volume, Balance, Bass and Treble, respectively.
PART LIST
see the image for part list
The arrangment shown in the diagram is the pre-amplifier.The circuit is designed as an active stereo-tone/volume control for car radios, TV receivers and mains-fed equipment.
It includes functions for bass and treble control, volume control with built-in contour (can be switched off) and balance.
All these functions can be controlled by d.c. voltages or by single linear potentiometers.
It starts from the input power supply integrated into the 3 pin is the positive voltage and negative voltage to pin 8. This circuit will have only R and C classes of devices to filter out frequencies in different area.When the signal from the sound source enters into the pin 15 of IC1, the INPUT signal is coupling through the C1 and C2 signals of each channel.
Left and the right, then the IC will amplify signals with C6 and C4. C5 and C3 act as base (low frequency control) with VR1-VR4 to adjust the Volume, Balance, Bass and Treble, respectively.
PART LIST
see the image for part list
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