What is the small signal model of LLC converters?
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The small signal model of LLC converters is an important aspect in analyzing their dynamical behavior and designing controllers. Several approaches have been proposed in the literature to model the small signal control-to-output dynamics of resonant converters. One approach is the Fundamental Harmonic Approximation (FHA), which models the different stages of a series resonant converter and derives the control-to-output transfer function analytically . Another approach is the use of a third-order nonlinear model for LLC resonant converters, which can be treated as fairly linear for small perturbations at a fixed operating point . Additionally, a data-driven approach using machine learning techniques has been explored to approximate the small-signal output current response of a generic resonant converter . These different modeling techniques provide insights into the behavior of LLC converters and aid in controller design.
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| Papers (4) | Insight |
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21 Oct 2022 | The paper proposes a third-order non-linear model for LLC resonant converters, which can be treated as fairly linear for small perturbations at a fixed operating point. |
21 Oct 2022 | The paper proposes a third-order non-linear model for LLC resonant converters, which can be treated as fairly linear for small perturbations at a fixed operating point. |
| The provided paper is about envelope-detection-based accurate small-signal modeling of series resonant converters. It does not mention the small signal model of LLC converters. | |
| LLC converters are not mentioned in the provided paper. |
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