Measuring Bode plots of switching power converters from a single simulation in the time domain: Application to a digital control implemented on an FPGA

2010 ◽  
Author(s):  
C. Fernandez ◽  
A. Fernandez-Herrero ◽  
P. Zumel ◽  
A. Lazaro ◽  
A. Barrado
Keyword(s):  
Time Domain ◽  
Digital Control ◽  
Power Converters ◽  
Switching Power ◽  
Switching Power Converters ◽  
Bode Plots ◽  
The Time Domain

Student understanding of phase shifts, frequency and Bode plots

2016 ◽  
Vol 54 (3) ◽  
pp. 247-261 ◽  
Author(s):  
Pieter Coppens ◽  
Johan Van den Bossche ◽  
Mieke De Cock
Keyword(s):  
Phase Shift ◽  
Time Domain ◽  
Engineering Students ◽  
Phase Shifts ◽  
Student Understanding ◽  
Bode Plots ◽  
Second Year ◽  
The Time Domain

In a series of interviews with second year electronics engineering students, several of them showed problems with signal properties. In a questionnaire administered to over 150 students in Belgium, these problems were further explored to verify how widespread they are. The questions asked about different aspects of signals. Students showed that they understand the concept of a phase shift, although they have problems with the direction. However, they generally have no idea what a signal with two frequencies looks like in the time domain. Bode plots also proved to be a problem for students, who are not able to construct one from a set of (dummy) measurements. Most of these issues persist after lab instruction.

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