Course detail

Diagnostics and Testing of Electronic Systems

FEKT-BPA-DTSAcad. year: 2023/2024

Diagnosis and testing of electronic circuits. Failure modes. Detection and fault location. Failure classification and mechanisms of disorders. Diagnostic system. Physical methods of technical diagnostics. Functional methods of technical diagnostics. Diagnosing analog circuits. Diagnosis of digital circuits. Built-in test systems, boundary scan, logic analyzers. Designing circuits for testability and diagnostic ability.

Language of instruction

English

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

Ing. Michal Pavlík, Ph.D.

Department

Department of Microelectronics (UMEL)

Entry knowledge

The subject knowledge on the secondary school level is required.

Rules for evaluation and completion of the course

semestral project .................... 15 points
individual device analysis ....... 15 points
final test ............................... 70 points
laboratory exercises

Aims

To acquaint students with the basic concepts of technical diagnostics, to explain the differences between physical and functional approaches to diagnosis, clarify issues sources of errors that can occur during measurement and how to prevent them, get to know the basic methods of testing electrical blocks vestavětného familiar with the method of testing and JTAG interface contain, learn with the problems of circuit design for ease of diagnostic ability.
Student is skilled on the basic terminology used in the field of technical diagnostics after successful completion of the course . Student understands the difference between physical and functional diagnostic methods. He knows the possible causes of measurement errors of electrical circuits and knows how to prevent them. Understands the principle on which it is based JTAG test interface. Can name the principles of electronic systems for ease of diagnostc ability.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Bushnell M.L., Agrawal V. D.: Essentials of Electronic Testing, Kluwer Academic Publishers, Boston, 2000 (EN)
Hurst L.S.: VLSI testing, The Institution of EE, London, 1998 (EN)
Mourad S.: Principles of Testing Electronic Systems, John Wiley & Sons Inc., New York, 2000 (EN)

Type of course unit

Lecture

26 hod., optionally

Teacher / Lecturer

Ing. Michal Pavlík, Ph.D.

Syllabus

1. Introduction to technical diagnostics - basic concepts of technical diagnostics. Diagnostic system. Diagnostic resources. Diagnostic object. Diagnostic task. Diagnostic value. Diagnostics online and offline. Stages of technical diagnostics use. Technical diagnostics of pre-assembly phase. Technical diagnostics during start up of the circuit and control of the final product. Technical diagnostics in service practice, periodic checks and consistently applied.

2. Fault types of electronic components, integrated circuits - degradation mechanisms and cause malfunction. Terminology disorders. Disorders of passive and active components of electronic circuits. Disorders of integrated circuits. Causes of failures in the connecting system. Fault types neoživeného equipment. Number of single and multiple failures in a combinational network. Disorders of CMOS circuits.

3. Physical and function methods of the technical diagnostics. Mathematical models of diagnostic objects. Diagnostic tests. Forms of diagnostics. Periodic diagnostics. Continuous diagnostics. Display diagnostic test using a table, a procedure of testing. Detection testing. Localization testing. Graphic display diagnostic test using the tree. Build a set of faults, fault models, build diagnostic tests.

4. Methodology of practical procedure for the diagnosis of electrotechnical equipment division circuits, difficulties in measuring electrical variables

5. Practical examples of diagnosis of the electrical circuits

6. The feedback systems (sources, amplifiers), stability issue

7. Practical examples of diagnostic feedback circuit

8. Diagnosis and testing of digital circuits. Faults in logic circuits. Diagnosing faults in logic systems, faults modeling, testing of logic circuits, Boolean difference, creating tests for combinational circuits.

9. Applications of functional diagnostics methods on objects with analog variables. The functional block diagram and logic diagram diagnostic facility with analog signals. Solution-oriented diagnostic tasks using cause-effect graphs for objects with analog signals.

10. Diagnosis and testing of digital circuits. Faults in logic circuits. Diagnosing faults in logical systems. Generation of structural tests. Functional tests. Test generation using Boolean difference.

11. Built-in test systems (BIST) and Boundary Scan (JTAG) - history, principles, description by BSDL

12. Circuit design for easy diagnosis. Development of design methods for easy diagnosis. Structured design. Heuristic design. Built-in diagnostic tools. Diagnostic tests written to memory. Autonomic testing generated in real time. Generating pseudotriviálních tests. Failsafe. Security system. Fail safe circuits. Totally self-checking circuits. Other security methods.

Exercise in computer lab

26 hod., optionally

Teacher / Lecturer

Ing. Martin Žilka

Syllabus

Failures analysis in bipolar transistor amplifier circuit
Failures analysis in basic blocks of the operational amplifier
Failures analysis in audio amplifier circuit, measuring of the parameters
Failures analysis in linear power supply circuit, measuring of the parameters
Basic measurements with logic analyzer, measuring of the gates delay
Analysis of communication with the logic analyzer, standard communication protocols 1
Analysis of communication with the logic analyzer, common communication protocols 2
The analysis of digital systems using a logic analyzer - a digital thermometer

Elearning

eLearning: currently opened course

VUT

Faculties

University Institutes

Parts

Diagnostics and Testing of Electronic Systems

Type of course unit