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NAND gates circuit

  • Engineering
  • Thread starter jumphigh
  • Start date
  • #1
6
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Hey all,

How can I draw a diagram of some logic circuit that will light an LED if either or both the left
and right door of a car are open and if the driver is seated ?

Assume that the doors and seat are equipped with switches, and that only NAND gates are available. ( My circuit should also be as simple as possible).

Im kinda lost in what I have to do, any words of wisdom?

Thanks
 

Answers and Replies

  • #2
68
0
Try drawing it first with whatever gates you want. You should be able to convert everything to NAND gates after.
 
  • #3
vk6kro
Science Advisor
4,081
40
  • #4
6
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Yes, you can do that.

Have a look at this article in Wikipedia about making other gates from NAND gates.

http://en.wikipedia.org/wiki/NAND_logic
Thanks all,

Is the driver`s condition (seated or unseated ) considered as the third input?
I mean, the first input is right door, the second input is the left door, and the third input is the driver?
 
  • #5
berkeman
Mentor
56,811
6,776
Thanks all,

Is the driver`s condition (seated or unseated ) considered as the third input?
I mean, the first input is right door, the second input is the left door, and the third input is the driver?
Yes, all 3 inputs need to go into your circuit.
 

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