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BTEC NATIONAL EXT DIPLOMA IN ENGINEERING

LEARNER NAME ASSESSOR NAME

N. Hodgson

DATE ISSUED HAND IN DATE SUBMITTED ON

Criteria Achieved

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P2 (part) - Explain the operation of two different types of transistor, one in an analogue and one in a digital circuitP5 - Build and test a combinational logic circuit that has three input variablesP6 - build and test a sequential circuit using integrated circuit(s)P8 - use a computer software package to simulate the construction and testing of a digital logic circuit with three gates.M2 - modify a digital circuit to achieve a given revised specification by selecting and changing up to two logic gatesM3 - Evaluate and minimise a three input combinational logic circuit containing three gates.

This brief has been verified as fit for purpose

Internal Verifier ANTHONY SPICER

Signature A J Spicer Date

27/07/2012

Our Lady & St John Catholic College Engineering 1

UNIT 35 – Principles and Applications of Electronic Devices and Circuits (K/600/0300)

ASSIGNMENT FIVE – ROCKET LAUNCHER


Assessor's commentsQualification Edexcel Lev 3 National Diploma in

EngineeringAssessor name N. Hodgson

Unit number and titleUnit 35 – Principles and Applications of Electronic Devices and Circuits (K/600/0300)

Learner name

Assignment title ASSIGNMENT FIVE – ROCKET LAUNCHER

Grading criteria Achieved?

P2 (part) - Explain the operation of two different types of transistor, one in an analogue and one in a digital circuitP5 - Build and test a combinational logic circuit that has three input variables

P6 - build and test a sequential circuit using integrated circuit(s)

P8 - use a computer software package to simulate the construction and testing of a digital logic circuit with three gates.M2 - modify a digital circuit to achieve a given revised specification by selecting and changing up to two logic gatesM3 - Evaluate and minimise a three input combinational logic circuit containing three gates.

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Assessor signature Date

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M3 Evaluate and minimise a three input combinational logic circuit containing three gates.

A Petrol Station has three tanks for fuel storage. A level sensor in each tank produces a HIGH voltage when the level of the fuel in the tank drops below a specified point. The circuit drawn in fig 1 below helps to monitor the fuel level in each tank and indicates when the level in any two of the tanks drops below the specified point.

Tank Level Sensor Logic Circuit

(a) Evaluate all stages of this circuit using appropriate logic statements and logic equations to give full Boolean expressions for all output states.

(b) Develop a truth table to verify the results obtained in (a) above.

(c) Translate the truth table into a Karnaugh Map and use this to show how each of the output states was minimised


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