Circuitos

Esquema de Amplificador com 90W RMS

As saídas podem ter 2(90W) ou 4(130W) transístores de potencia.
100W audio amplifier schematic

PCB e Componentes

100W PCB 
100W audio amplifier components layout
Utilize T3 directamente no dissipador
ComponenteRef./ValorTipo
R1120K1/4W Resistor
R23K31/2W Resistor
R35K61/4W Resistor
R43K31/4W Resistor
R5680R1/4W Resistor
R6120R1/4W Resistor
R73K31/4W Resistor
R81K21/4W Resistor
R92K71/4W Resistor
R101K51/4W Resistor
R11680R1/4W Resistor
R12120R1/4W Resistor
R13120R1/4W Resistor
R140,33R5W Resistor
R150,33r5W Resistor
R1610R1W Resistor
R1710R1W Resistor
C110uF16V Electrolytic Capacitor
C2330µF16V Electrolytic Capacitor
C3470uF35V Electrolytic Capacitor
C4150pFCeramic Capacitor
C5100nF100V Polyester Capacitor
RV11KTrimpot
D19V1 - 500mWZener
T1BC557PNP transistor
T2BC557PNP transistor
T3BC548NPN transistor
T4BD137NPN transistor
T5BD137NPN transistor
T6BD138PNP transistor
T72N3773NPN transistor
T82N3773NPN transistor
L1BobinaO maior número de espiras fio nº22, enroladas na R16

Fonte de Alimentação

100W audio amplifier PSU schematicPSU PCB
ComponenteRef./ValorTipo
T130+30 - 3,5ATransformer
D1-D2-D3-D4Rectifier 5A - 150V Diode
C1-C24700uF50V Electrolytic Capacitor
F1-F23AFuse
C3-C4100nF100V Polyester

Saída de Audio e Dissipador

heatsink and board conections

4 Transístores 130 W

heatsink and board conections

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Circuitos

 
Samuel Geraldo da Silva