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
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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