Design a circuit for a car chime based on the following system: A car chime or bell will sound if the output of the logic circuit (X) is set to a logic 'l'. The chime is to be sounded for either of the following conditions: • if the headlights are left on when the engine is turned off and • if the engine is off and the key is in the ignition when the door is opened. Use the following input names and nomenclature in the design process: • 'E' – Engine. 'l' if the engine is ON and '0' if the engine is OFF L'- Lights. 'l' if the lights are ON and '0' if the lights are OFF 'K- Key. 'l' if the key is in the ignition and '0' if the key is not in the ignition 'D' - Door. 'l' the door is open and O' if the door is closed 'X' - Output to Chime. 'l' is chime is ON and '0' if chime is OFF a. Create the truth table for given system requirements. b. Write a sum-of-products expression for the output (X). Use Boolean theorems or a K-map to simplify the expression. Show all of the steps used in the selected simplification process. d. Draw the circuit diagram for the simplified expression. c.
Design a circuit for a car chime based on the following system: A car chime or bell will sound if the output of the logic circuit (X) is set to a logic 'l'. The chime is to be sounded for either of the following conditions: • if the headlights are left on when the engine is turned off and • if the engine is off and the key is in the ignition when the door is opened. Use the following input names and nomenclature in the design process: • 'E' – Engine. 'l' if the engine is ON and '0' if the engine is OFF L'- Lights. 'l' if the lights are ON and '0' if the lights are OFF 'K- Key. 'l' if the key is in the ignition and '0' if the key is not in the ignition 'D' - Door. 'l' the door is open and O' if the door is closed 'X' - Output to Chime. 'l' is chime is ON and '0' if chime is OFF a. Create the truth table for given system requirements. b. Write a sum-of-products expression for the output (X). Use Boolean theorems or a K-map to simplify the expression. Show all of the steps used in the selected simplification process. d. Draw the circuit diagram for the simplified expression. c.
Chapter22: Sequence Control
Section: Chapter Questions
Problem 6SQ: Draw a symbol for a solid-state logic element AND.
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Transcribed Image Text:Design a circuit for a car chime based on the following system:
A car chime or bell will sound if the output of the logic circuit (X) is set to a logie 'l'. The chime is to be
sounded for either of the following conditions:
• if the headlights are left on when the engine is turned off and
• if the engine is off and the key is in the ignition when the door is opened.
Use the following input names and nomenclature in the design process:
· E' - Engine. 'l' if the engine is ON and '0' if the engine is OFF
• L'- Lights. 'l'if the lights are ON and '0' if the lights are OFF
'K - Key. 'l' if the key is in the ignition and '0' if the key is not in the ignition
'D'- Door. 'l' the door is open and O' if the door is closed
'X - Output to Chime. 'l' is chime is ON and '0' if chime is OFF
a. Create the truth table for given system requirements.
b. Write a sum-of-products expression for the output (X).
c. Use Boolean theorems or a K-map to simplify the expression. Show all of the steps used in the
selected simplification process.
d. Draw the circuit diagram for the simplified expression.
Transcribed Image Text:Design, construct and test the following combinational logic problems with minimum number
of IC's. For all ICs in this experiment: Vcc = +5v to pin 14, and 0 (ground) to pin 7.
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