 | Digital Teaching Aid (DED Philippinen, 86 p.) |
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Second Evaluation
No. 1 In a workshop two machines are driven by an electric motor
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Power consumption: |
motor A = 1 KW |
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motor B = 2 KW |
For a new machine of which its motor C receives the power of 4 KW, the maximum main power of Pmax = 4 KW is sufficient only if the two other machines (A and B) are not switched on. Design a circuit which supplies a warning signal Q if a power higher than 4 KW is taken from the main power system by the three machines.
- Truth table
- Karnaugh map
- Logic circuit
No. 2 For a display of the figures 1-6, in the well known spot configuration of a game die, design the code conversion circuit. At the input the figures are binary coded.
T, U, V, W, X, Y, Z are output variables (LED's)
- Truth table
- Karnaugh map
- Logic circuit
Figure
No. 3 Design a JK Flip Flop with NAND and AND gates.
- Logic circuit
- Truth table
No. 4 Design a D Flip Flop. Use only NAND gates.
- Logic circuit
- Truth table
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