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Diary

February 15, 2011 Leave a comment

Due to the nature of word press and by putting different areas into different categories the way I have approached this  project may seem like a little hap hazard with bits of information dotted all over the place but not necessarily in the order I originally looked at them.  To combat this I will try to leave a diary of a more chronological approach of what, why and when I was thinking what I was thinking and how I felt best to move onto the next area.

February 17th: Featured in Assess the audit.  What is competence?:  The whole project revolves around this word competence, I need to define what I feel competence means to me and explain how I am going to prove it.

February 22nd:  Featured in What is a digital circuit:  Exactly that, what is a digital circuit? Find out what it means what are its features.

February 24th:  Featured in Logic Gates:  What is a logic gate? What exactly is a logic gate, a more detailed look at what this term means,  how do they apply to digital circuits.

February 24th: Featured in What is a digital circuit?  Looking at the differences between analog and digital circuits.

February 27th:  Binary numbers, a quick explanation of what a binary number is after the taught session with Dean.

If I am going to be making some digital circuits I really need to get a better knowledge of the components I am going to be working with.  I touched on their uses in ED217 but I don’t feel I gained a comprehensive look into their functioning.  Books to read :

Electronics Circuit Handbook, Michael Tooley 1988

Digital Electronics, Roger Tokheim 2008

Electronic Products, Dave Mawsom,Paul Bell, Phillip Poole,  Tristram Shephard 1996

March 3rd- March 14th:  Reading the texts and trying to understand them researching and gaining knowledge in components featured in Components.

March 14th- Researching integrated circuits featured in Integrated circuits.

Having made the monostable circuit in Deans tutorial I stuck with the 555 timer but decided to make the other two types of circuit as in a bistable and astable and a couple off different variations of them.

Now that I had had a play using the 555 timer I decided that I wanted to have a look at different types of IC.  During my research into looking at different digital circuits the 4000 series IC’s kept popping up.  I decided to have a play with the 4011 chip as this comprises of NAND gates and you can use NAND gates to make any other type of gate.

May- Having made RC timing circuits finally I want to make a counter circuit so I built an astable circuit and used the 4510 BCD counter to make an up/down binary counter

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Categories: Assess the audit, Diary