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⇱ Input Filter Design | Coursera

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Gain insight into a topic and learn the fundamentals.
4.7

42 reviews

Intermediate level
Some related experience required
Flexible schedule
1 week at 10 hours a week
Learn at your own pace
Gain insight into a topic and learn the fundamentals.
4.7

42 reviews

Intermediate level
Some related experience required
Flexible schedule
1 week at 10 hours a week
Learn at your own pace

What you'll learn

  • Understand conducted electromagnetic interference (EMI) and the need for input filter

  • Understand input filter design principles based on attenuation requirements and impedance interactions.

  • Design properly damped single-stage and damped multi-stage input filters.

  • Use computer-aided tools and simulations to verify input filter design

Details to know

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Assessments

9 assignments

Taught in English
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Build your subject-matter expertise

This course is part of the Modeling and Control of Power Electronics Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
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  • Gain a foundational understanding of a subject or tool
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There are 3 modules in this course

This course can also be taken for academic credit as ECEA 5707, part of CU Boulder’s Master of Science in Electrical Engineering degree.

This is Course #3 in the Modeling and Control of Power Electronics course sequence. After completion of this course, you will gain an understanding of issues related to electromagnetic interference (EMI) and electromagnetic compatibility (EMC), the need for input filters and the effects input filters may have on converter responses. You will be able to design properly damped single and multi-section filters to meet the conducted EMI attenuation requirements without compromising frequency responses or stability of closed-loop controlled power converters. We strongly recommend students complete the CU Boulder Power Electronics specialization as well as Courses #1 (Averaged-Switch Modeling and Simulation) and #2 (Techniques of Design-Oriented Analysis) before enrolling in this course (the course numbers provided below are for students in the CU Boulder's MS-EE program): ● Introduction to Power Electronics (ECEA 5700) ● Converter Circuits (ECEA 5701) ● Converter Control (ECEA 5702) ● Averaged-Switch Modeling and Simulation (ECEA 5705) ● Techniques of Design-Oriented Analysis (ECEA 5706) After completing this course, you will be able to: ● Understand conducted electromagnetic interference (EMI) and the need for input filter ● Understand input filter design principles based on attenuation requirements and impedance interactions. ● Design properly damped single-stage input filters. ● Design properly damped multi-stage input filters. ● Use computer-aided tools and simulations to verify input filter design

Introduction to electromagnetic interference, the need for input filtering, and the input filter effects

What's included

11 videos8 readings4 assignments1 discussion prompt

11 videos•Total 99 minutes
  • Introduction to Electromagnetic Compatibility (EMC) and Interference (EMI)•12 minutes
  • Differential and Common-Mode EMI•7 minutes
  • EMI Measurement and Simulation Example•25 minutes
  • Addition of Input Filter to a Converter•5 minutes
  • Impedance Interactions•12 minutes
  • Approaches to Input Filter Design•10 minutes
  • Overview of MATLAB and Spice examples•9 minutes
  • Control-to-Output Transfer Function with Input Filter•3 minutes
  • Determination of ZD and ZN•4 minutes
  • Input Filter Design Criteria•8 minutes
  • Corner Frequencies•3 minutes
8 readings•Total 51 minutes
  • Course Updates and Accessibility Support•1 minute
  • Non-Credit Students: Welcome and Where to Find Help•10 minutes
  • Introduction to the Course•10 minutes
  • Accessing & Using MATLAB•10 minutes
  • Accessing & Using LTspice•5 minutes
  • Course MATLAB & LTspice Examples•10 minutes
  • Understanding EMI and Mitigating Noise in DC/DC Converters•0 minutes
  • MATLAB and LTspice examples•5 minutes
4 assignments•Total 140 minutes
  • Practice Problem: LISN and EMI•20 minutes
  • Practice Problem: Effects of Input Filter•30 minutes
  • Practice Problem: ZN, ZD, and Frequency Responses•30 minutes
  • Introduction to Input Filter Design•60 minutes
1 discussion prompt•Total 10 minutes
  • Introduce Yourself•10 minutes

Design of single-section damped input filters

What's included

5 videos3 assignments

5 videos•Total 53 minutes
  • Introduction to Input Filter Damping•6 minutes
  • Parallel RC Damping•15 minutes
  • Damping Networks•1 minute
  • Optimum Damping•20 minutes
  • Optimum Damping: Summary of Results•11 minutes
3 assignments•Total 150 minutes
  • Practice Problem: Damped Cb-Rf Input Filter, Large Cb•30 minutes
  • Practice: Optimally Damped Cb-Rf Input Filter•30 minutes
  • Single Stage Input Filter Design•90 minutes

Design of multiple-section damped inputs filters

What's included

3 videos2 assignments

3 videos•Total 29 minutes
  • Multi-Stage Cascaded Filters•7 minutes
  • Cascaded Filter Design Example•19 minutes
  • Input Filter Design Summary•2 minutes
2 assignments•Total 180 minutes
  • Practice Problem: Multi-Stage Input Filter Design•90 minutes
  • Multi Stage Input Filter Design•90 minutes

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Build toward a degree

This course is part of the following degree program(s) offered by University of Colorado Boulder. If you are admitted and enroll, your completed coursework may count toward your degree learning and your progress can transfer with you.¹

Instructor

Instructor ratings
4.8 (13 ratings)
University of Colorado Boulder
9 Courses•35,616 learners

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Reviewed on Jul 22, 2025

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