Course detail

# Control Electronics

FEKT-BREBAcad. year: 2017/2018

Analog and digital control circuits.

Bipolar and unipolar transistors: linear and switching regime. Operation amplifiers: internal structure, circuits with OA. Logic circuits, internal structure TTL, CMOS. Memories. Rules for the successfull use of the logic circuits. A/D and D/A converters. Special circuits. Sensors of the electric, and non-electric signals.

Supervisor

Learning outcomes of the course unit

It is proved by written test, that student is able:

- To list passive circuit elements R, L, C, linear/nonlinear, parametric/nonparametric, and to describe its properties.

- To use the parametric elements to the construction of the sensors of the nonelectric quantities (temperature, mech. pressure, ...).

- To list the basic laws and rules for the solving of linear electric circuits, and to use it to the solving of circuits.

- To list and to define the basic transfer parameters of the transfer two-ports.

- To calculate and to draw the Bode diagrams (amplitude and phase) the actual passive two-ports of the RC, and RLC types.

- To calculate and to set the working point of the bipolar transistor in the any connection.

- To list and to define h-parameters of the bipolar transistor.

- To calculate the voltage gain and input impedance of the bipolar transistor in the connections: SE, SE+Re, SC, SB.

- To illustrate the connection and to explain the function of the differential amplifier, of the current mirror, and of the constant current source.

- To match the inner structure of the simple operational amplifier, and to explain the principle of its work.

- To reproduce the following linear circuits with operational amplifiers: P, I, D, PI. To calculate its transfer features in the frequency and time domain, to draw its Bode diagrams (ampl., phase).

- To explain the difference between combinational and sequential digital circuits.

- To list the axioms and lemmas of the Boolean algebra. To use it in the practical way to the minimisation of the logic expressions.

- To create the logic expression from the logic table.

- To set the logic combinational circuit defined by the logic expression.

- To list the basic types of the sequential logic circuits.

- To list the basic types of the bistable flip-flop circuits RS, RST, JK, D. To describe its features and function.

- To describe the principle of D/A converters.

- To list the basic types of the A/D converters.

In the laboratory practices the student measures and analyses signals in different electronic circuits with help of oscilloscope. Each circuit (i.e. each work) is realised on the printed circuits board as in the real technical praxis. Student trains following skills:

- To handle and to use basic measure instruments in the electronics laboratory: oscilloscope, signal generator, laboratory supplies.

- To measure properties of the phase pended loop with the circuit 4046.

- To measure the transfer features of the operational amplifier in the invert and non-invert connections: P, P+LF filter of 1st order, follower.

- To measure the transfer features of the active LF-filter of 2nd order with the operational amplifier.

- To measure the static and dynamic features of the signal transistor in the switching regime. To design the optimal driving circuit of the transistor in the switching regime.

- To measure and to analyse the static and dynamic features the operational amplifier connected as the comparator with/without the hysteresis. To realise the oscillator with help of the comparator with the hysteresis.

- To measure and to analyse the features the operational amplifier connected as the integrator. To use the integrator to the realisation of the triangle signal generator. To set the PWM modulator with the help of its.

- To measure the static features of the constant current source with the bipolar transistor. To set the saw voltage generator with the help of it.

- To describe the function and connection of the D/A converter DAC08, the programmable counter CMOS 4029 and the memory Intel 27C64.

Prerequisites

Student must have the previous knowledge from the applied mathematics:
- To use and to apply the mathematical operations above complex numbers in the component and polar representation (summation, subtraction, multiplication, division, and rectification of the complex fraction).
- To use and to apply the mathematical operations above complex numbers in the component and polar representation (summation, subtraction, multiplication, division, and rectification of the complex fraction).
- To apply the basic principles of the integral and differential calculus of one variable: description of the inductor work, i.e. induction law in the differential and integral form; similarly the dif. and integr. relations between instant values of the current and voltage at the capacitor.
Student must have the previous general knowledge and ability:
- To describe basic properties of the discrete electronic devices (diode, bipolar and unipolar transistor).
- To be able practically to use, and to apply the following tools for the analysis and synthesis of the electric circuits: 1st and 2nd Kirchhoff laws, Ohm law, the induction law in the differential and integral form.
- To calculate voltage transfer of the divider built from two arbitrary impedances.
- To calculate parallel combination of two impedances.
- To use the Thevenin theorem in the practical way.

Co-requisites

Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

Dostál J.: Operační zesilovače. SNTL, Praha, 1981. (CS)

Chee-Mun Ong: Dynamic Simulation of Electric Machinery. Prentice-Hall, 1998. (EN)

Sobotka Z.: Kurs číslicové techniky. SNTL, Praha 1974. (CS)

Patočka M., Vorel P.: Řídicí elektronika - pasivní obvody. (CS)

Patočka M., Vorel P.: Řídicí elektronika - aktivní obvody. (CS)

Patočka M., Burian F.: Sbírka řešených příkladů z řídicí elektroniky (CS)

Ayers J. E.: Digital integrated circuits, Analysis and design. CRC PRESS, N.Y., 2004, ISBN 0-8493-1951-X. (EN)

Crecraft D., Gorham D.: Electronics. Nelson Thornes Ltd., U. K., 2003, second edition, ISBN 0-7487-7036-4. (EN)

Planned learning activities and teaching methods

Lectures are lead with the massive support of Power-Point. The Power-Point file is available for students.

In laboratories, students measure 11 exercises (electronic circuits) with the help of oscillograph.

Numerical exercises do not exist - instead of it, the collection of cca 50 solved examples is available for student.

Assesment methods and criteria linked to learning outcomes

8 x 3 points = 24 points for 8 laboratory tasks.

76 points for exam.

100 points total.

Language of instruction

Czech

Work placements

Not applicable.

Course curriculum

1. Passive circuit elements R, L, C, linear/non-linear, parametric/non-parametric.

2. Parametric elements as sensors of the non-electric quantities.

3. Basic laws a rules for solving of the linear electrical circuits.

4. Transfer four-poles, two-ports. The basic transfer facilities. Passive two-poles RC, RLC, the voltage transformer, the current transformer.

5.Bilolar and unipolar transistors – setting of the dc. working point, h-parameters. Connections: SE, SC, SB, differential amplifier, cascodes, current mirrors.

6. Inner structure of the operational amplifiers.

7. Linear circuits with the operational amplifiers.

8. Non-linear circuits with the operational amplifiers.

9. Digital circuits combinational and sequential.

10. Synthesis of the combinational circuits.

11. Synthesis of the sequential circuits.

12. D/A converters.

13. A/D converters.

Aims

Basic theoretical and practical knowledges for the design of the analog and digital circuits.

Specification of controlled education, way of implementation and compensation for absences

The attendance at the all laboratory exercises is required.

Classification of course in study plans

#### Type of course unit

Laboratory exercise

26 hours, compulsory

Teacher / Lecturer

eLearning

**eLearning:** currently opened course