The BRADLEY DEPARTMENT of ELECTRICAL and COMPUTER ENGINEERING

# ECE 2024 Circuits and Devices | ECE | Virginia Tech

### Course Information

#### Description

Analysis and design of passive and active circuits under Direct Current (DC), Alternating Current (AC), and switched excitation. Linear circuit analysis techniques for various circuit topologies. Expressing the transient response of first- and second-order linear circuits using time-domain methods. Calculating the AC steady-state response of linear circuits using phasors and immittances. Characterizing the frequency response of linear circuits. Determining operating point and small signal response of non-linear circuits containing diodes and bipolar transistors. Projects demonstrating circuit design processes adhering to professional practices.

#### Why take this course?

This course introduces techniques needed for the analysis and design of circuits having various types of excitation. Circuits are essential to the implementation of components, systems, and networks in the fields of electrical and computer engineering. The ability to analyze and design circuits is a fundamental skill necessary in upper-level courses in these disciplines.

### Learning Objectives

• 1. Analyze linear circuits using standard techniques: node voltage analysis, mesh current analysis, linearity and superposition, Th�venin and Norton equivalents, and the virtual short circuit approximation for op amp circuits.
• 2. Express the transient response of first- and second-order linear circuits using time-domain methods.
• 3. Calculate the sinusoidal steady-state response of a linear circuit at a specified frequency using phasors and immittances.
• 4. Derive and illustrate the frequency response of a linear circuit using transfer functions, Bode plots, and Fourier series analysis.
• 5. Determine the operating point and small-signal response of non-linear circuits that include diodes and/or bipolar transistors.
• 6. Design oscillators, filters, and amplifiers using processes that adhere to professional practices and ethical standards.

### Course Topics

#### Percentage of Course

1. Linear circuit analysis techniques 20%
2. First- and second-order circuits 20%
3. Phasors and immittances 15%
4. Frequency response of linear circuits 15%
5. Non-linear circuit analysis techniques 20%
6. Circuit project design 10%