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Car stereo amplifiers abound, but most are compromises in performance or are expensive. our built it yourself car amplifier is real goose-bump generator, offering performance in the high-end home stereo range. Our built-it-yourself car amplifier has so much power that it ought to be illegal. Performance highlights include 270 watts output power (135 watts per channel, RMS into 8 ohms), low distortion, and exceptional output current capabilities. Along with high performance, another design goal was that the amplifier be easy to build. That was accomplished by using a custom heat sing and a single PC board. Figure 2 shows the power supply schematic. The basic design is a push pull forward inverter with pulse-width modulation voltage regulation. Relay RY101 is energized via the 12-vilt control lead. Both amplifiers (left and right) are identical, and parts are numbered the same, with L or R suffix, as appropriate. Building the amplifier if you are fabricating your own circuit board, remember that your will have to provide feed-through and solder component leads on both sides of the board in several places.
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Tags : pulse width modulation, car stereo amplifiers, car audio amplifier, hi fi car, car amplifier, custom heat, performance highlights, design goal, voltage regulation, vilt, home stereo, schematics, compromises, rms, suffix
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