150W Car Amplifier based LA47536

Here the 150W car amplifier circuit, build based LA47536 power IC. The LF353 which is manufactured by National Semiconductor, will split audio signal into three bands. While, the power IC LA47536 of SANYO will boost these signals. In stereo mode, we shall have the action of eight high speakers who are going to create a very important sound pressure.

The above circuit is the audio signal splitter, while the following circuit is the main power amplifier design diagram:

The LA47536 is a 4-channel BTL power amplifier IC developed for use in car audio systems. The output stage features:

• A pure complimentary structure that uses V-PNP transistors on the high side and NPN transistors on the low side to provide high power and superb audio quality.
• The LA47536 includes almost all the functions required for car audio use, including a standby switch, a muting function, and each protection circuit. It also provides a self-diagnosis function (output offset detection). (Sanyo)

For detailed explanation about this power audio amplifier, please visit this page.