A Manufacturer of MP3 players has developed a simple audio amplifier circuit. The circuit has been developed to the point where they have a working printed circuit board (PCB). Although they are used to the design of MP3 players they have not designed an amplifier case before.
The manufacturer would like ideas for an enclosure for the PCB, batteries & speaker to be mounted in. The manufacturer has asked you to do this for them. It is important that you make sure the final design meets all the requirements that you identify for such a product.
The ANALYSIS involves listing as many questions as you can think of regarding your project. The questions will vary from project to project but usually the majority of these questions are the same, whatever the project you are attempting.
Download the Analysis of the Brief document below and complete the analysis diagram found at the bottom of the page.
PDF Format: Amplifier Analysis of the Brief.pdf
After analysing the brief it's time to conduct your research. In your research you should try to find more information and details to the questions you answered in the Analysis of the Brief.
You can use whatever resources you have available in your classroom and at home. You could look in books, magazines or catalogs, or conduct a survey asking potential customers what they think. Although best place to start is most commonly the Internet.
Download the template below to display the research you have collected.
MS PowerPoint Format: Amplifier Research.ppt
PDF Format: Amplifier Research.pdf
A specification is a list of points each referring to a feature that you wish to include in your Amplifier.
In the specification you should also show what you have learned from the research that you collected.
For example: "My amplifier will incorperate an iPod docking station so an iPod can be held securely whilst playing music.
I decided to include this feature because all MP3 speaker systems currently on the market tend to include this feature"
Write out a specification for your amplifier.
Write these out as bullet points.
Use the following Microsoft Word template to complete your specification:
PDF Format: Amplifier Specification.pdf
Next sketch out some ideas for what your Amplifier might look like. Try to be original and innovative, make your designs look interesting and attractive!
Download and print this page to sketch your ideas on:
Once you have chosen your best idea draw it out neatly, make it large enough so you can see the detail and add colour or shade.
It's important to have a presentation drawing of the design you intend to manufacture. It allows you to show your client what their product will look like before any money is spent on manufacturing it. For instance if the client did not like the design you can change or modify it before manufacturing.
Download and print this page to present your final idea on:
PDF Format: Amplifier Final Design Landscape.pdf
A Video Demonstration on Soldering
Amplifier Circuit Build
You can view a video of these instructions below, simply pause the video between each picture.
Testing and Evaluation
Once your Amplifier and its casing is complete you should Evaluate it by testing against your Specification.
Download the Evaluation template below.
PDF Format: Amplifier Evaluation.pdf
Alternatively you could use the ACCESS-FM method of evaluating products:Amplifier ACCESS-FM Evaluation.pdf
A - Aesthetics (meaning appearance)
C - Cost (meaning a price range)
C - Customer (meaning the person who wants to buy it)
E - Environment (meaning everything around your product)
S - Safety (meaning how safe it is)
S - Size (meaning how big it is)
F - Function (meaning what job it does)
M - Materials (meaning what materials would you need to make it)