DC CircuitsLaajuus (6 ECTS)

Objective

After completion of this course the student is able to understand the basic concepts of direct current circuits, components and calculation methods. The student understands Ohm’s law, Kirchhoff’s laws and electrical power.

The student is familiar with and can use the basic methods: mesh current method, node voltage method and superposition theorem, when analyzing circuits and networks. Thevenin’s and Norton’s theorems are also studied.

After completion of the course the student understands also the basic concepts of alternating current: AC voltages and currents, frequency and power of sine wave alternating voltage.

The student is able to do basic DC and AC measurements. Measuring voltages, currents and resistances with a digital multimeter and an oscilloscope is required.

Content

1. Basic concepts: voltage, charge, current, resistance etc.
2. Circuit elements
3. Ohm’s and Kirchhoff’s laws
4. Electrical power
5. Analysis of series-parallel circuits
6. Network theorems
7. Systematic analysis methods
8. Alternating voltage and current
9. Basic passive components
10. Voltage, current and power of a sine wave voltage

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 alternating 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 networks

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
4. The student knows how to calculate the different components of power in case of sine wave voltages and currents