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60 Watts bridge subwoofer amplifier

1. 2×TDA2050/TDA2030 ic.
2. 1×L7815/L7812 ic.
3. 1×L7915/L7912 ic.
4. 1×4558D/TL072/TL082/NE5532 ic.
5. 2×22uF 50/63V capacitor.
6. 1×4.7uF 50/63V capacitor.
7. 2×2.2uF 50/63V capacitor.
8. 1×1uF 50/63V capacitor.
9. 2×4700uF 35V capacitor.
10. 5×104pF 50/100V capacitor.
11. 1×102pF 50/100V capacitor.
12. 1×330pF 50/100V capacitor.
13. 1×470pF 50/100V capacitor.
14. 1×473pF 50/100V capacitor.
15. 2×474pF 50/100V capacitor.
16. 2×200k 1/4W resistor.
17. 1×150k 1/4W resistor.
18. 2×100k 1/4W resistor.
19. 5×22k 1/4W resistor.
20. 2×2.2k 1/4W resistor.
21. 1×1k 1/4W resistor.
22. 2×680Ω 1/4W resistor.
23. 2×2.2Ω 1/4W resistor.
24. 4×1N5408 diode.
25. 2×47k single turn potentiometer.

watch this video for better understanding

License► ©Technical Mriganka. You can't use this pcb layout for commercial purpose. You can use this pcb layout only for educational and diy projects.

In this post I make a bridge amplifier for subwoofer. For Audio ic I use TDA2050 ic, you can use here TDA2030 ic For low pass filter I using 4558D ic, you can use here TL072/ TL082/ NE5532 ic. Frequency response 20hz - 60hz. For power supply you can use 18-0-18V 3A/ 12-0-12V 4A transformer. Use a good quality heatsink and a good quality fan for this board. This is because the temperature in the bridge mode is much higher than in the normal mode. Otherwise the IC may burn out. Now follow my steps for this subwoofer Amplifier. First we make pcb. For make pcb you need pcb layout. download the pcb layout and print it by laser printer on photo paper. Then cut the pcb layout. Then press the pcb layout by iron on copper clad board. Press the iron 10-15 munites. Then leave the pcb for cool down 10 munites. when the pcb was cool, put the pcb in water and move the pcb layout to copper clad board. Then put the pcb in ferric chloride [FeCl3+H2O] for etching 10-15 munites. when etching was end, clean the pcb by water. Then make hole on pcb. And then press the upper side print of pcb. Now your pcb is ready mount components by instruction.

After complete the board, don't forget to series light test. In series light check audio input and speaker output voltages. Make sure input and output voltages are 0.0 volt. Then connect the subwoofer and preamplifier. 

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