35W Bridge Power Amplifier with TDA2030

This is the schematic diagram of 35W bridge power amplifier circuit, delivers 35W power output for 8? speaker. The circuit is similar to this 15W bridge amplifier. It use two pieces of amplifier IC TDA2030 (you may use LM1875 as subtitute/replacement).

 Build a 35W Bridge Power Amplifier with TDA2030

Build a 35W Bridge Power Amplifier with TDA2030


Notes:
  • Use 15V/3A power supply for maximum performance.
  • Use heatsink to prevent overheating on the IC
Parts List:
R1,3,5,7,9 = 22K?
R2,8 = 680?
R4,6 = 1?
C1 = 4.7uF/16V
C2,7 = 22uF/16V
C3,6 = 220nF
C4,9 = 100nF
C5,8 = 200uF/25V
IC1-2 = TDA2030 / LM1875
Lsp = 8?/ 60W Loudspeaker


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