This circuit is a simple design for power amplifier. The power amplifier has output 22W. This circuit is easy to build and low cost. The circuit can be used as a booster in a car audio system, an amp for satellite speakers in a surround sound or home theater system, or as an amp for computer speakers. The circuit is quite compact and uses only about 60 watts. The figure is the circuit of the power amplifier;
The circuit works best with 4 ohm speakers, but 8 ohm units will do. The circuit dissipates roughly 28 watts of heat, so a good heat sink is necessary. The chip should run cool enough to touch with the proper heat sink installed. The circuit operates at 12 Volts at about 5 Amps at full volume. Lower volumes use less current, and therefore produce less heat. Printed circuit board is preferred, but universal solder or perfect board will do. Keep lead length short.
This is a part of the component;
R1 39K 1/4 Watt Resistor
C1, C2 10uf 25V Electrolytic Capacitor
C3 100uf 25V Electrolytic Capacitor
C4 47uf 25V Electrolytic Capacitor
C5 0.1uf 25V Ceramic Capacitor
C6 2200uf 25V Electrolytic Capacitor
U1 TDA1554 Two Channel Audio Amp Chip
MISC Heat sink For U1, Binding Posts (For Output), RCA Jacks (For Input), Wire, Board
The circuit works best with 4 ohm speakers, but 8 ohm units will do. The circuit dissipates roughly 28 watts of heat, so a good heat sink is necessary. The chip should run cool enough to touch with the proper heat sink installed. The circuit operates at 12 Volts at about 5 Amps at full volume. Lower volumes use less current, and therefore produce less heat. Printed circuit board is preferred, but universal solder or perfect board will do. Keep lead length short.
This is a part of the component;
R1 39K 1/4 Watt Resistor
C1, C2 10uf 25V Electrolytic Capacitor
C3 100uf 25V Electrolytic Capacitor
C4 47uf 25V Electrolytic Capacitor
C5 0.1uf 25V Ceramic Capacitor
C6 2200uf 25V Electrolytic Capacitor
U1 TDA1554 Two Channel Audio Amp Chip
MISC Heat sink For U1, Binding Posts (For Output), RCA Jacks (For Input), Wire, Board
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