Class Electronics I

Provide the student with the knowledge necessary to understand the fundamental elements of semiconductor electronics.
Study of the basic circuits of electronics: circuits with diodes (rectifiers, limiters, peak detector, fasteners, voltage multipliers, voltage regulators, etc.); circuits with the bipolar junction transistor (amplifiers, switching circuits, current sources, etc.); circuits with operational amplifiers (inverter and / or non-inverter amplifier, summing amplifier, difference amplifier, integrating amplifier and differentiating amplifier).

Signals and amplifiers; Types of Amplifiers; Voltage, current and power gain; Bandwidth. Models.
OPERATIONAL AMPLIFIERS: Operation. Modes of operation: linear and saturation. Inverter and non-inverter amplifier, inverter and non-inverter adder, difference amplifier, integrator and differentiator. Bandwidth. Main feature. Not ideal characteristics.
JUNCTION DIODE PN: Symbology. Physical structure. Semiconductor basics. Characteristic V-I. Diode circuit analysis: diode models. The zener diode: characteristic V-I. Diode applications. Schottky diodes, the abrupt junction diode, varicap, photodiode and light emitting diode.
BIPOLAR JOINT TRANSISTORS: NPN and PNP types. Symbology. Physical structure. Operation principle. Ebbers-Moll model. Modes of operation: direct active zone, saturation and cutting. Operating Point at rest. The TJB as a switch and amplifier. Models for weak signals and assemblies.

Provision of different study material in digital format, such as slides and exercises. Recourse to
simulation software

Apontamentos teóricos das aulas de Electrónica 1, Filipe Macedo.

• Sedra, Adel S., Smith, K. C. Microelectronic Circuits. Sixth Edition. Oxford University Press, 2009.
• Boylestad , Robert L, Nashelsky, Louis. Electronic Devices and Circuit Theory. 10th Edition. Pearson/Prentice Hall, 2009.
• Medeiros Silva, Manuel. Introdução aos Circuitos Eléctricos e Electrónicos. 4.a Edição. Edições Gulbenkian, 2009.
• Medeiros Silva, Manuel. Circuitos com transístores bipolares e MOS. 3.a Edição. Edições Gulbenkian, 2003.