8W+8W Stereo Amplifier Module, Manuais, Projetos, Pesquisas de Engenharia Eletrônica

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8W+8W Stereo Amplifier Module À: endless variety of stereo am- plifiers are available in the market. But the prices of good quality amplifiers, equipped with graphic equalisers etc, are not within the reach of all audio enthusiasts. The cheaper varieties are generally based on discrete transistors, and suffer from drawbacks such as | Amit Bir Tiwana je [ LEFT (+86) BAND RIGHT ] CHANNEL lim GRAPHIG | gp! CHANNEL AMPLIFIER EQUALISER AMPLUFIER IC2 1 13 LEFT A RIGHT CHANNEL CHANNEL SPEAKER SPEAKER uncontrolled hum, ineffective tone | Fig. 1: Block diagram. [Dn REGULATED POWER SUPPLY L en a c19 25 10 IC2 LS1 25 LM2002A “2 í f E 5 toma ci 10 2ov Fa vRI3 100K T T e VAI VAZ VAI VBA VAS VBS E + RGMT (ON VRI — VRIZ = 12x 100K (PÓT) INPUT dê VAZ vha VA9 VAIO VAIS VAIZ ; cr 28u = ” vais sm + | 100 330% Co 5 W3 152 RS SAM GAIS GRIS SRT hai Gs 22004 Lt 33K Se 33K SG 23K ae a9kK $ ek 1Ou LM2002A 25v E. 25v , cal co | cmo | cmn|cia)ca e Riz Ara me 15 mm 8.20 4.71 5n TT 300p SOM 100K | [ = Law ni Rd + + 0 GRAPHIC EQUALISER «+ POWER AMPLIFIER——— ap Fig. 2: Circuit diagram for 8W+8W stereo amplifier module. ELECTRONICS PROJECTS [EM