Identify different types of diode

Reference no: EM132785794

Unit 19 Electronic Devices and Circuits - Pearson BTEC Level 3 National Foundation Diploma in Engineering

Learning aim: Explore the safe operation and applications of analogue devices and circuits that form the building blocks of commercial circuits

Assignment - Analogue electronic devices and circuits

Task 1 Carry out theoretical and practical investigations into analogue devices and circuits.

You need to investigate:

(a) Diodes and how they are used in a full-wave rectified power supply with voltage regulation
(b) Transistors and how they are used in a stabilised common emitter amplifier
(c) Operational amplifiers and how they are used in an amplifier circuit

You need to provide evidence that you have consistently worked safely in accordance with relevant risk assessments.

To do this you will need to work systematically following the guide below:

(a) Diode circuits

(i) Identify different types of diode and their uses
(ii) Construct a schematic diagram and simulate the operation of a diode as a half-wave rectifier
(iii) Develop the circuit schematic and simulation to a full-wave rectifier with capacitor smoothing and Zener diode voltage regulation.

(iv) Build a prototype of your final circuit
(v) Record the output voltage
(vi) Estimate the voltage ripple for different loads
(vii) Compare the results from theory, simulation and measurement

(b) Transistor circuits

(i) Identify different types of transistor and their uses
(ii) Construct the schematic circuit of a common emitter amplifier in your ECAD package.

(iii) Use the schematic to simulate the behavior of the circuit with a low voltage sine wave input signal of frequency 1kHz. Adjust the amplitude of the input voltage to give the largest undistorted output voltage.
(iv) Investigate how the voltage gain changes with frequency between 10Hz and 1MHz.
(v) Build a prototype of the final circuit and measure the voltage gain for the same frequency range.
(vi) compare the results from theory, simulation and measurements

(i) Identify the pin-out of an operational amplifier and relate it to the schematic diagram
(ii) Simulate inverting and non-inverting amplifier applications of an operational amplifier, noting the effect of resistor values on the voltage gain.
(iii) Construct the schematic diagram of aninverting amplifier with gain of 10
(iv) Simulate the gain at frequencies between 10Hz and 1MHz
(v) Build a prototype circuit and measure the voltage gain over the same range of frequencies
(vi) Compare the results from theory, simulation and measurements.

Non-inverting amplifier

Inverting amplifier

Reference no: EM132785794

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