This is a simple design for 8 watt audio amplifier circuit using IC LM 386. This amplifier is much suitable for small game amplifying applications. This is the figure of the circuit.
The circuit has few components and works of a 12 Volt power supply. You can increase the supply voltage up to 18V for a bit more power, with out changing the components. But I would say 12V is OK. A 4 Ohm speaker can be used as load. Volume can be controlled by connecting a 10k pot at the audio input to the IC.
This is the Parts list:
C1 1 10uf Electrolytic Capacitor
C2 1 470uf Electrolytic Capacitor
C3 1 0.1uF Disc Capacitor
C4 1 2000uf Electrolytic Capacitor 2200uF
R1 1 2.2 Ohm Resistance (Anything Within 10% tolerance)
R3 1 220 Ohm Resistance (Anything Within 10% tolerance)
IC1 1 LM383 IC
The circuit has few components and works of a 12 Volt power supply. You can increase the supply voltage up to 18V for a bit more power, with out changing the components. But I would say 12V is OK. A 4 Ohm speaker can be used as load. Volume can be controlled by connecting a 10k pot at the audio input to the IC.
This is the Parts list:
C1 1 10uf Electrolytic Capacitor
C2 1 470uf Electrolytic Capacitor
C3 1 0.1uF Disc Capacitor
C4 1 2000uf Electrolytic Capacitor 2200uF
R1 1 2.2 Ohm Resistance (Anything Within 10% tolerance)
R3 1 220 Ohm Resistance (Anything Within 10% tolerance)
IC1 1 LM383 IC
This schematic doesn't match the pinout for the lm386.... You're applying power to pin 8 instead of pin 6 and you're sending the out put from pins 1 and 2 instead of pin 6.
ReplyDeletecorrection: output comes from pin 5.
ReplyDelete