Date of Award
2016
Publisher
North Dakota State University
Document Type
Thesis
Degree Awarded
Master of Science (MS)
Program
Electrical and Computer Engineering
Department
Electrical and Computer Engineering
College
Engineering
Faculty Advisor
Braaten, Benjamin Davis
Description
An active transformerless common mode filter is designed for use with switching mode power supplies with a switching frequency greater than 1MHz. The filter utilizes an amplifier in a voltage sensing current adjusting architecture to cancel out common mode noise generated by the switching power supply. The filter is analyzed using a transfer function, simulation, and measurements. Several possible feedback configurations are examined and benefits of different configurations are explained. The active filter is shown to have superior performance to only passive components at frequencies up to 20MHz. Spectral domain, time domain, and S21 measurements are given to show the filter’s effectiveness.
Recommended Citation
Booth, Brian, "An Active Power Supply Filter with Ultra Wide Bandwidth" (2016). Electrical and Computer Engineering. 74.
https://digitalcommons.ndsu.edu/elec-comp-eng/74
Rights
NDSU Policy 190.6.2
Rights Link
https://www.ndsu.edu/fileadmin/policy/190.pdf
Handle Identifier
https://hdl.handle.net/10365/28281