Aim
Mechanical engineers need to use more electronics today than ever before. Most products, processes, and systems involve one or more of the following items:

• measurement of electrical and non-electrical variables;

• signal processing;

• analogue and digital, power electronic and electromechanical energy conversion.

Knowledge and understanding
For a passing grade the student must

• be able to account for the theory of DC and AC circuits

• have basic knowledge in applied electronics, both analogue and digital

• have basic knowledge in electric measurement, sensors and how signals are amplified and filtered

• have basic knowledge in how electric machines in industrial drive systems work and are controlled

• have basic knowledge in Boolean algebra, digital combinatorial networks, the structure of the micro computer and basics for its programming

• have basic knowledge in programming of a PLC-system (industrial programmable digital control systems).

Skills and abilities
For a passing grade the student must

• be able to analyse basic DC and AC circuits

• be able to suggest and analyse basic circuits in signal electronics, e.g. suggest a circuit for interfacing a sensor signal to its control computer

• be able to elect a suitable industrial drive system for a given application

• be able to perform basic automation control using a PLC-system.

Contents
DC: Current, voltage, resistance. Ohm’s and Kirchhoff’s laws. Electric energy, power and efficiency. Practical circuit computations.

AC: Measurement methods. Time, frequency, the jw-method. Three phase. Active, reactive, apparent power and power factor.

Electronics: Diode, AC-DC converter, the transistor as a switch, OP-amplifiers. Bode diagram.

Digital systems: Binary code, Boolean algebra, states, programmable circuits. The microprocessor. Control using PLC (Programmable Logic Circuits).

Electric machines and power electronics: Industrial drive systems: electromagnetic force, fundamental electrical machines, power electronic components and circuits, control.

Measurement technology: Sensors. Measurement of electric and non-electric variables.

Literature
Compendium in Electrical Engineering for M (IEA / LTH, 2006)