Reverse Engineering Paper

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For our project we decided to disassemble and understand a Memphis 1 Channel Mono Block Amplifier. First we started by disassembling the amp down to the main circuit board. From there we assigned ourselves different components to understand what they were and how they worked inside the amp. We all researched our components and got back together to discuss and figure out the flow of power and operations of the amp worked.
A general idea of what the amp does is as follows. Power comes into the inputs from the positive side of the car battery. A negative source comes from the car’s chassis to the negative terminal. The remote wire comes in from the head unit or source of sound to the remote input. When the source turns on, power runs from the remote wire to a relay inside that allows power to run through. Power then runs to various capacitors to store up power before running to the inductor that converts the power to usable power for the MOSFETs. As the power runs through the circuit, it eventually comes to resistors which slow up the current flow. Sound comes in through the inputs and to the MOSFET amplifiers. Then sound goes to the sound dampeners to clean the sound waves up before going to the sound outputs. To better understand the amp and its components we will branch off and explain each of the components and what they do. When a relay receives power, power runs through a set of coils and creates a magnetic field that actuates an arm inside and closes the circuit. Relays are used as switches to control larger circuits with more power. Since a relay is able to control an output circuit of higher power than the input circuit, it can be considered to be a form of an electrical amplifier. When using a relay in a dc current, diodes are put in across the coil to dissipate energy from the collapsing magnetic field at deactivation, which would cause a spike in voltage and damage components if not there. In a single channel mono block amplifier like the one

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