General Purpose 5 Watt Audio Amplifier based LA4460

Published:2013/3/12 1:42:00 Author:Ecco | Keyword: General Purpose , 5 Watt, Audio Amplifier | From:SeekIC

The 5 Watt audio amplifier shown here are suitable for driving the speaker size 8 to 12 inch. Here used an audio output from Sanyo LA4460 IC. The IC is actually used for car radio or car audio power amplifier and may deliver output power up to 12 W. But in this circuit is only used 5W. The 5 W audio amplifier circuit consists of loudness control, driver amplifier Q1, and the bass and treble controls of approximately ± 10 dB boost / cut. Either the ac supply shown in here can be used, or a 12 Vdc supply can be connected to points A&B (positive) and C (negative). Two of these circuits, using ganged potentiometers at R2, R7, and R11 can be used for stereo applications. T1 is a 12Volt 1 ampere plug-in transformer. Notice that IC1 must be heatsinked. Power output is about 5 W. A 4″ x 2″ x 0.050″ aluminum heatsink should be adequate.



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