AC CircuitsLaajuus (3 ECTS)

Objective

After completion of this course the student is able to understand the operation of alternating current circuits. The student understands the concepts of impedance and complex power and can analyze alternating current circuits using phasors.

The student is able to do more advanced AC measurements. Measuring voltage, current, impedance, frequency and phase difference with a digital multimeter and an oscilloscope is required. Also measurement of power is learned.

Content

1. Basic concepts of alternating current
2. Resistor, inductor and capacitor
3. Phasor calculus
4. Impedance
5. Circuit analysis of AC-circuits
6. Complex power

Qualifications

DC Circuits

Assessment criteria, satisfactory (1)

1. The student understands the basic laws of electrical engineerig
2. The student can analyze simple DC-circuits using basic laws
3. The student can perform basic electrical measurements with a digital multimeter and an oscilloscope.
4. The student is able to use mesh current method, superposition method and node voltage method when analyzing very simple circuits
5. The student understands the basics of altenating currents and voltages

Assessment criteria, good (3)

1. As level 1
2. The student is able to choose and use the proper analysis method when analyzing small networks and circuits
3. The student can reduce simple AC-networks
4. The student can understand and calculate different components of complex power

Assessment criteria, excellent (5)

1. As level 3
2. The student can use and choose the proper analysis method when analyzing complex networks
3. The student is able to create equivalent models of networks and is able to use Thevenin’s and Norton’s theorems