- Differentiate among voltage, current, and power, and perform calculations based on their relationships.
- Discuss the functions, characteristics, and applications of resistors, capacitors, inductors, and transformers, and predict the output of RC, RL, and RLC circuits.
- Develop and analyze a circuit simulation, build a circuit on a breadboard, and measure it using common instrumentation.
- Apply fundamental techniques, including Ohm’s law, Kirchhoff’s Laws, nodal analysis, mesh analysis, superposition, Thevenin’s theorem, and Norton’s theorem to analyze a given circuit, and design a circuit to specification.
|Topic||Introduction to Circuits|
|Style||Laboratory, Project Based Learning|
|Prerequisite Skills||Students should be able to:
INCLUDED COURSE LABS
In this lab, students will learn about Kirchoff's Current Law (KCL). KCL states that the sum of the currents flowing into any junction in a circuit is equal to the sum of the currents flowing out of it. Kirchoff's Circuit Law is a fundamental law that allows us to analyze parallel circuits and is often combined with Ohm's law and Kirchoff's Voltage Law to solve for unknown values in a circuit. This lab gives students the opportunity to calculate unknown values using Kirchoff's Current Law and then confirm those values by building a real circuit using the NI ELVIS III.
In this lab, students will learn about Thevenin and Norton equivalent circuits. Equivalent circuits are simplified versions of complex circuits that yield the same values and can, therefore, be used to simplify calculations about those circuits. For both Thevenin Equivalent Circuits and Norton Equivalent Circuits, students will confirm the founding theorems of equivalent circuits through a combination of calculation and circuit-building on the NI ELVIS III.
In this lab, students will learn how to recognize and analyze voltage divider and resistance bridge circuits. A voltage divider is a linear circuit that produces an output voltage smaller than its input voltage; it works by splitting the input voltage among its components. A bridge circuit is a circuit with two branches that are connected by a conductive bridge. Both types of circuit have numerous influential real-world applications, as students will discover through both simulation and hands-on work using NI ELVIS III.
In this lab, students will learn about capacitors, devices that store energy as electrostatic charge. They are common circuit components that have numerous applications both in series and parallel arrangements. Students will start by calculating capacitance in various configurations. Then, students will have the chance to build circuits and observe capacitors in action with the NI ELVIS III. Finally, students will test their knowledge by calculating the capacitance of a more advanced configuration.
In this lab, students will learn about resistor-capacitor (RC) circuits. These are circuits in which a resistor is placed in series with a capacitor and used to control the rate at which the capacitor charges or discharges. Like capacitors themselves, RC circuits have many applications in real-world circuitry. Students will make calculations for a given RC circuit and then build, modify, and measure that circuit with the NI ELVIS III. Students will also gain experience with two instruments: the function generator and the oscilloscope.
In this lab, students will learn about RLC circuits. These circuits consist of a resistor (R), inductor (L), and capacitor (C) wired in series, parallel, or any combination of the two. RLC circuits are oscillators, meaning that they produce a periodic, oscillating electronic signal. Each RLC circuit has its own resonant frequency, an input frequency at which the circuit exhibits distinctive behavior. For this lab, students will be given an RLC circuit and asked to calculate its resonant frequency. They will then build that circuit with the NI ELVIS III to observe how it behaves and confirm its resonant frequency using the Bode analyzer.
In this lab, students will learn about transformers. Transformers are devices that use electromagnetic induction to increase and decrease the voltages of AC signals. They allow us to manage the logistics of power transmission and to establish a suitable voltage for each power use. The output of a transformer is determined by the ratio of turns in its two coils, also known as the turn relationship. Students will work with two different simulations in order to understand how a transformer's turn relationship affects voltage and current and to investigate transformer power efficiency.
In this project, students will apply their knowledge of circuits to understand components of a complex real-world device: a radio. All radio receivers include a tuning circuit so that they can be tuned to pick up a specific broadcast frequency. Many simple passive radios use LC or RLC circuits as tuners, and students will be investigating these in this lab. Students will be challenged to use Multisim Live to design and test their own RLC tuning circuit to receive specified FM signal frequencies.