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This paper describes a power loss analysis of a proposed tapped-inductor buck converter which suitable for home DC power supply system. A laboratory prototype of a coin size (34mm × 26mm × 5mm) with DC 48V input to 1.2V/30A output was built and tested to verify the accuracy of the loss analysis. As a result, about 90% efficiency under middle and heavy load region can be achieved at 500kHz switching...
This paper presents a new control technique for a digitally controlled buck converter. In the proposed method predictive PID control is employed in order to improve transient response and margin of stability. The application of the proposed method is demonstrated for the prototype buck converter. The frequency response is discussed and the transient response is examined to confirm the performance...
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,...
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