18W Amplifier Circuit Using HA13118

This is a circuit diagram of power amplifier circuit. Circuit diagram of this amplifier is a type of mini amplifier, which generated power is only 18W. Circuit diagram audio amplifier IC HA13118 supported by the component. The main types of this amplifier is the amplifier bridge as the output line is not grounded. Supply voltage required for this circuit is 8 – 18V DC, at least 1-2 Amps. Maximum output power will only be obtained with a 18V power supply at greater than 2 A, using 4 ohm speakers. The following is a schematic drawing:

Power supply must be filtered well to reduce the main hum, which regulated the supply will further reduce noise. Additional filtering is unnecessary if operating from a battery supply. This power amplifer circuit despite having a low power, but the results are quite satisfactory. Power amplifer is suitable to use in car audio systems.