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This paper presents a comparative study of frequency analysis algorithms, i.e., State-Space Averaging Method (SSAM) and Fourier Transform Method (FTM) for switching converters. These two methods are reviewed briefly and a circuit simulator is implemented and demonstrated with several circuits, for example, a buck converter as a simple-structured circuit, a tapped-inductor converter as a resonant circuit,...
This paper presents a novel fast simulation algorithm for the frequency analysis of switching power converters. Numerical Fourier Transform is employed to obtain fast results. The proposed algorithm is applicable to any circuits including self-oscillating circuits such as hysteretic PWM converters. A circuit simulator using the proposed algorithm is implemented and demonstrated with a hysteretic PWM...
This paper presents a novel DC-to-DC converter with an auxiliary circuit that completely cancels the ripple current in the output capacitor. Operation principles of the proposed circuit are described, and steady state and small signal ac characteristics are analyzed and confirmed by experiments. Furthermore, a compensation circuit to improve dynamic characteristic is proposed and confirmed by experiments
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