Academy of Advanced
Technologies
Date required WC 15th April 2013 Date given WC 25th March 2013
Date submitted FS3
Date resubmitted
BTEC Nationals
LEARNER’S NAME: ASSESSOR’S NAME:
B. Pendleton
BTEC PROGRAMME TITLE/CODE: ROOM NUMBER
BTEC L3 Subsidiary Diploma / FX118 E3146
BTEC L3 Diploma / FX121
UNIT TITLE/ NUMBER: ASSESSMENT NUMBER &TITLE:
Assignment 1
Principles and Applications of Electronic Devices and Circuits/ Unit 35 Construction and Operation of Analogue Circuits
BTEC UNIT CODE: LEVEL: BTEC UNIT VALUE:
20804C 3 10
INTERNAL VERIFICATION
DATE - PRE - ASSESSMENT BRIEF: VERIFIER:
11TH March 2013 S. Latham
DATE - COMPLETED SCRIPT: VERIFIER:
Grading criteria:
Criteria Yes/No/Ref Date
PASS grade criteria for this assessment:
• explain the purpose of two different types of diode, each in a different P1
electronic circuit application
• explain the operation of two different types of transistor, one in an P2
analogue and one in a digital circuit
• build and test two different types of analogue circuit using operational P4
amplifiers
MERIT grade criteria for this assessment:
• modify an existing analogue circuit to achieve a given revised M1
specification by selecting and changing the value of one of the
components
DISTINCTION grade criteria for this assessment:
Not available in this assignment
Statement of Academic Honesty
This work is entirely my own and I believe satisfies the assessment criteria above. The words it contains are my
words and, where it has been necessary to use someone else’s words I have accurately attributed them to the
writer or speaker who created them.
Signed: Date:
Version 4 The Hub 28-09-10
Academy of Advanced
Technologies
NB Please leave all original work intact when submitting referred work.
Provide additional work on extra sheets
FEEDBACK- FS2
• Strengths
• Areas for improvement
• Remedial action required
Assessor signature: Date:
• Student response to feedback
Student Signature: Date:
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Academy of Advanced
Technologies
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Academy of Advanced
Technologies
Assignment 1
Construction and Operation of Analogue Circuits
NOTE ALL PASS CRITERIA MUST HAVE EVIDENCE PROVIDED TO PASS THE UNIT.
FAILURE TO PROVIDE EVIDENCE WILL LEAD TO THE COURSE DISCIPLINARY PROCEDURE
BEING INVOKED.
Scenario for the whole assignment
Learners have been asked by their employer to build and test analogue circuits to meet a new
design requirement.
Successfully completing this part of the assignment show that the student is able to:
Explain the purpose of two different types of diode, each in a different electronic circuit application
(P1)
Explain the operation of two different types of transistor, one in an analogue and one in a digital
circuit
(P2)
Build and test two different types of analogue circuit using operational amplifiers
(P4)
Modify an existing analogue circuit to achieve a given revised specification by selecting and
changing the value of one of the components
(M1)
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Academy of Advanced
Technologies
Task 1 (P1) (P4)
Part A
a) Build the circuit shown opposite.
b) Construct a table to record the input
voltage Vs between 0 -12V in 1 volt
increments and the resultant output
voltage Vz. Adjusting the main power
supply to give the Vs value required.
c) Explain the purpose of the zener
diode.
Part B
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Academy of Advanced
Technologies
d) Build the circuit shown opposite.
e) Switch on the power supply.
f) Connect a shorting link between 10.8
and 10.9
g) As the shorting link is connected the
Light Emitting Diode illuminates
indicating that current is driving the load.
h) Explain the purpose of the Light
Emitting Diode.
Task 2 (P2)
a) Explain the operation of the transistor in the switching circuit used in Task 1 Part B.
b) Explain the operation of the transistor Q1 in the following circuit.
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Academy of Advanced
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Task 4 (M1) Optional
a) Obtain the components and build
the circuit shown opposite.
b) Measure and record the transistor
Base voltage for light and dark
conditions. (sensor covered and
uncovered).
c) Modify the circuit so that it operates
over a range of light levels by
changing one component.
d) State the component changed.
e) The new range of Base voltage that
the circuit operates over.
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