FSI-RNIAcad. year: 2017/2018
Linear and non-linear circuits with operational amplifiers (amplifiers, filters, rectifiers, signal generators, comparators, more complicated circuits - all with respect to control circuits for pulse converters). Methods of current and voltage sensing. True power sensing in DC/DC converters. Typical cicuit realizations for control electronics of pulse converters. Rectangle signal generators. Drivers for power MOSFETs and IGBTs.
Learning outcomes of the course unit
Students learn how to design electronic circuits used typically in the industry.
Basic knowledge in theoretical electrical engineering and mathematics (derivation, integration, complex numbers operations).
Recommended optional programme components
Recommended or required reading
Vorel P.: Řídicí členy v elektrických pohonech
Planned learning activities and teaching methods
The course is taught through lectures explaining the basic principles and theory of the discipline. Exercises are focused on practical topics presented in lectures.
Assesment methods and criteria linked to learning outcomes
Course-unit credit requirements: Participation in laboratory exercises Evaluation: Semester test: 10point Laboratory excercise: 25point Final test: 65point
Language of instruction
1 CURRENT SENSORS 1.1 SHUNT APPLICATIONS 1.2 PULSE CURRENT TRANSFORMER 1.3 ROGOWSKI COIL 1.4 CURRENT SENSOR "LEM" 2 VOLTAGE SENSORS 2.1 RESISTIVE DIVIDER WITH FILTER CAPACITOR 2.2 DIFFERENTIAL AMPLIFIER 2.3 VOLTAGE SENSOR "LEM" 3 OUTPUT POWER SENSING IN DC/DC CONVERTERS 3.1 USAGE EXAMPLES OF CONVERTER OUTPUT POWER CONTROL 3.2 OUTPUT VOLTAGE AND CURRENT MULTIPLICATION 3.3 USAGE OF AVERAGE VALUE OF DC LINK CURRENT 3.4 "SAMPLING" OF THE OUTPUT CURRENT WITH THE DUTY 4 TYPICAL CIRCUIT REALIZATIONS IN CONTROL ELECTRONICS 4.1 ELLIMINATION OF THE INFLUENCE OF ADJUSTABLE RESISTIVE DIVIDER OUTPUT RESISTANCE 4.2 CONTROLLED LIMITER 4.3 UNCONTROLLED LIMITER 4.4 INVERTING AMPLIFIER WITH A SWITCHED GAIN VALUE 4.5 VOLTAGE REFERENCE WITH TL431 4.6 FAST OVER-CURRENT PROTECTION 4.7 FAST UNDER-VOLTAGE PROTECTION (SUPPLY UNDER-VOLTAGE FOR CONTROL CIRCUITS) 4.8 JOINT OUTPUTS OF PROTECTIONS 4.9 DEADTIME REALIZATION 4.10 SOME OTHER APPLICATIONS 5 RECTANGLE SIGNAL GENERATORS 5.1 ASTABLE FLIP-FLOPS WITH CRYSTALS 5.2 RC ASTABLE FLIP-FLOPS - VARIOUS CIRCUITS 5.3 RELAXATION OSCILLATORS 6 DRIVERS FOR POWER MOSFETs AND IGBTs 6.1 SYSTEM SOLUTION OF THE DRIVING CIRCUIT 6.2 COMMON TRANSFER OF SIGNAL AND DRIVING ENERGY WITH A MAGNETIC WAY 6.3 INFORMATION TRANSFER WITH AN OPTICAL WAY 6.4 GALVANICALLY SEPARATED SOURCE OF THE SECONDARY SUPPLY VOLTAGE 6.5 "CHARGE PUMP" AS A REPLACEMENT FOR THE GALVANICALLY SEPARATED SUPPLY SOURCE 6.6 PROFESSIONAL DRIVERS SEMIKRON AND CONCEPT
Students will obtain a knowledge about typical electronic circuits in industrial applications especially in control electronics, electrical drivers, measurement and power electronics.
Specification of controlled education, way of implementation and compensation for absences
Attendance at practical training is obligatory.
Type of course unit
26 hours, optionally
Teacher / Lecturer
1. Linear models of a bipolar transistor, amplification stages
2. Important connections with bipolar and unipolar transistors in a LF-range
3. Harmonic oscillators
4. DC voltage and current regulators
5. Transformer - a theoretical and practical analysis
6. Coils, chokes - a theoretical and practical analysis
7. Line rectifiers, DC supply sources with line transformers
8. Operational amplifier - principles, properties, basic connections
9. More sophisticated circuits with operational amplifiers
10. Speed, position, presure and temperature sensors
11. Current and voltage sensors, simple measurement of capacities, inductivities and resistances
12. Drivers for power transistors with a pulse transformer and with an optocoupler
13. Pulse-width-modulation, principles of DC/DC converters with a voltage intercircuit
26 hours, compulsory
Teacher / Lecturer
1. Transistor amplification stages
2. Crystal oscillators
3. Bipolar transistor and MOSFET in a switching regime
4. DC supplying source
5. Operational amplifiers connections
6. Induction speed sensor
7. Driving circuits for a power transistor MOSFET and IGBT - 1st part
8. Driving circuits for a power transistor MOSFET and IGBT - 2nd part
9. Comparators, PWM modulators
10. Step-down converter without transformer
11. Step-up converter without transformer
12. Backup power source 24V=/230V~, 600VA
13. DC electrical drive with a speed compensation
- otazky 2017 [.doc] 36 kB