Electronic Systems

The structure of the subject is formed by three thematic blocks. Following is a indication of the content taught in each of these blocks:

BLOCK 1
- Electronic Feedback Circuits
o Basic concepts of the theory related to feedback electronics
o Electronic feedback circuit topologies
o Calculation of the gain, input impedance and output impedance in feedback circuits.
o Conception of the practical or approximate method used to solve negative feedback circuits. Example
o Basic configurations of the beta network according to the different topologies
o Study of feedback circuits for each one of the different topologies.
- Frequency Analysis of Electronic Feedback Circuits
o Frequency analysis of a feedback amplifier
o Stability study of a feedback amplifier using the Bode diagram
o Compensation methods. Exercices
- Oscillators
o Start up condition and oscillator maintenance
o General configuration of an oscillator.
o RC oscillators:
o Amplitude limiters
o LC Oscillators: Colpitts, Hartley and Clapp Oscillators
o Crystal Oscillators (Xtal)
BLOCK 2
- Real Operational Amplifiers and their Applications
o Ideal operational amplifier (review)
o Real operational amplifier characteristics
o Linear applications (review)
o Active filters as linear application
o Non-linear applications
- Electronic Subsystems for signal processing and communications: Integrated timers and applications. PLLs and Applications.
o The 555 integrated timer: monostable, astable and VCO modes
o PLLs:
- Blocks diagram and working principle
- PLL components: phase detectors, filters, VCOs
- PLL transfer function. PLL types.
- 1st order PLL. Examples.
- 2nd order PLL. Examples.
- PLL Applications.
BLOCK 3
- Power Supplies. Voltage Regulators and Switching DC/DC Converters
o Series - Shunt feedback in linear voltage regulators
o Basic design of a linear voltage regulator
o Power and efficiency calculations
o Fundamentals of switching DC/DC Converters
o Basic operation of Buck converter
o Basic design of Buck converter
o Negative feedback in a switching DC/DC Converter
o DC/DC and AC/DC Converters for Telecommunications.SAIs
- Energy Converters
o Basic analysis of a photovoltaic generator
o Description of other systems related to electrical energy generation.