Low Frequency Characterization of PWM Converters |
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| Authors: | Ngo Khai D. T. |
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| Affiliation: | General Electric Company, Corporate Research and Development, Schenectady, NY, USA.; |
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| Abstract: | Low frequency components of states or outputs in pulse-width modulation (PWM) dc and ac converters can be characterized by differential equations called describing state-space equations. These equations are derived by inspection of converter topology and use of switching functions and duty ratios. Their steady-state and small-signal dynamic solutions show how energy-storage elements in a converter/load system shape the frequency response of conversion functions established by the switches. |
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