Development of Ideas
This part of the controlled assessment requires you to come up with some initial designs for circuits (at least 3) and casings (at least 2) for your product. Once you have stated which is the most suitable design and WHY, you need to show 5 or 6 stages of development. This can be in the form of combining subsystem circuits, and modifying them. Similarly, for the casing, this involves modifying one of your initial ideas, or combining several together, and coming up with a final design.
For both your circuit and casing, you MUST show development through "thinking on paper". This means that you need to FULLY EXPLAIN every step in your development, and WHY you have done it. The more steps you can include (and the more detailed they are), the higher marks you will gain.
Remember to keep referring back to your design criteria (specification), and analyse whether your developments are working towards achieving these criteria. Also make sure to include client feedback on any major development work. Discuss it with your client and note down (along the margin) their thoughts on these developments. It may be that you have to adapt them at a later stage to accommodate a client request.
Make sure to use as many forms of modelling as possible eg. CAD (Croc Technology/PCB Design & Make/ 2D Design/ Google Sketch Up) and prototypes (Breadboarding/Card mock ups for laser cut work).
For both your circuit and casing, you MUST show development through "thinking on paper". This means that you need to FULLY EXPLAIN every step in your development, and WHY you have done it. The more steps you can include (and the more detailed they are), the higher marks you will gain.
Remember to keep referring back to your design criteria (specification), and analyse whether your developments are working towards achieving these criteria. Also make sure to include client feedback on any major development work. Discuss it with your client and note down (along the margin) their thoughts on these developments. It may be that you have to adapt them at a later stage to accommodate a client request.
Make sure to use as many forms of modelling as possible eg. CAD (Croc Technology/PCB Design & Make/ 2D Design/ Google Sketch Up) and prototypes (Breadboarding/Card mock ups for laser cut work).
Sub-circuits
Some sub-circuits you may want to look at are:
Astables (555, 4047)
Counters (Decade 4017, Binary 4516, Seven segment)
Op Amp (741)
You can find most of them in the blue Design & make text book
Astables (555, 4047)
Counters (Decade 4017, Binary 4516, Seven segment)
Op Amp (741)
You can find most of them in the blue Design & make text book
CIRCUIT Development: What do I need to include?
Grade C
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Grade B
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Grade A/*
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Examples of Initial Ideas
CASING Development: What do I need to include?
Grade C(under construction)
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Grade B(under construction)
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Grade A/*(under construction)
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