Course detail

# Control Electronics

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 successful use of the logic circuits. A/D converters. D/A converters. Special circuits. Special circuits. Sensors of the electric and non-electric signals.

Learning outcomes of the course unit

It is proved by written test that the student is able: - To list passive circuit elements R, L, C, linear/nonlinear, parametric/nonparametric, and to describe their properties. - To use the parametric elements for the construction of sensors of nonelectric quantities (temperature, mech. pressure, ...). - To list the basic laws and rules for solving of linear electric circuits, and to use it for solving of circuits. - To list and to define the basic transfer parameters of transfer two-ports. - To calculate and to draw the Bode diagrams (amplitude and phase) of the actual passive two-ports of RC and RLC types. - To calculate and to set the operation point of the bipolar transistor in any connection. - To list and to define the h-parameters of the bipolar transistor. - To calculate the voltage gain and input impedance of the bipolar transistor in various connections. To illustrate the connection and to explain the function of the differential amplifier, current mirror and constant current source. - To describe the inner structure of the simple operational amplifier and to explain the principle of its work. - To design 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 minimization of logic expressions. - To create the logic expression from the logic table. In the laboratory practices the student measures and analyses signals in different electronic circuits using an oscilloscope. Each circuit (i.e. each work) is realized on a printed circuit board as in the real technical praxis. Student trains following skills: - To handle and to use basic measuring 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 analyze the static and dynamic features the operational amplifier connected as the comparator with/without the hysteresis. To realize the oscillator with help of the comparator with the hysteresis. - - To measure and to analyze the features the operational amplifier connected as the integrator. To use the integrator to the realization of the triangle signal generator. To create a PWM modulator using it. - To measure the static features of the constant current source with the bipolar transistor.

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 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 instantaneous values of the current and voltage at the capacitor. Student must have following knowledge and abilities from theoretical electro-engineering: - To describe basic properties of the discrete electronic components (diode, bipolar and unipolar transistor). - To be able to practically use and apply the following tools for the analysis and synthesis of electric circuits: 1st and 2nd Kirchhoff´s laws, Ohm´s 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.

Dostál J.: Operační zesilovače. SNTL, Praha, 1981.
Patočka M., Vorel P.: Řídicí elektronika - pasivní obvody.
Vorel, P.: Průmyslová elektronika - skriptum FEKT VUT. (CS)
Patočka M., Vorel P.: Řídicí elektronika - aktivní obvody.
Chee-Mun Ong: Dynamic Simulation of Electric Machinery. Prentice-Hall, 1998.
Sobotka Z.: Kurs číslicové techniky. SNTL, Praha 1974.
Patočka M., Burian F.: Sbírka řešených příkladů z řídicí elektroniky
Ayers J. E.: Digital integrated circuits, Analysis and design. CRC PRESS, N.Y., 2004, ISBN 0-8493-1951-X.
Crecraft D., Gorham D.: Electronics. Nelson Thornes Ltd., U. K., 2003, second edition, ISBN 0-7487-7036-4.

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 8 exercises (electronic circuits) with the help of oscilloscope. The collection of ca. 50 solved examples is available for students.

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.

Aims

Basic theoretical and practical knowledge for design of analog and digital circuits.

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

Attendance at the practical training is obligatory.

Classification of course in study plans

• Programme B3A-P Bachelor's

branch B-MET , 2. year of study, winter semester, 7 credits, compulsory

#### Type of course unit

Lecture

39 hours, optionally

Teacher / Lecturer

Syllabus

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.

Laboratory exercise

26 hours, compulsory

Teacher / Lecturer

Syllabus

Bipolar and unipolar transistors. Linear mode.
Transistors - switching mode.
Structure of the op. amplifiers.
Linear circuits with OAs.
Non-linear circuits with OAs.
Special circuits with OAs.
Structure of the digital TTL and CMOS circuits.
Digital combination circuits.
Digital sequention circuits.
Memories.
A/D converters.
D/A converters.
Special circuits.