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Digital average current (DAC) control of switching dc-dc converters with single-edge modulation (trailing-edge and leading-edge modulations) is studied in this paper. To calculate the average inductor current with minimum calculation time and appropriate precision, a new algorithm, called the four-point-mean (FPM) algorithm, is proposed. The DAC control laws with trailing-edge and leading-edge modulations...
Sub-harmonic oscillations of digital peak current (DPC) and digital valley current (DVC) controlled switching DC-DC converters operating in the continuous conduction mode (CCM) are analyzed in this paper. The control laws of DPC and DVC control and their corresponding sub-harmonic oscillations are studied. Digital slope compensation (DSC) method is proposed to eliminate the sub-harmonic oscillations...
In this paper, improved digital peak current (IDPC) controlled boost converter with leading-edge modulation, trailing-edge modulation, leading-triangle modulation, and trailing-triangle modulation is studied. Basing on the control algorithms of IDPC with these four pulse-width modulations, the small-signal models of IDPC controlled boost converter are derived. Small-signal analysis is subsequently...
Digital average current (DAC) control of buck converter with single-edge modulation (trailing-edge modulation and leading-edge modulation) is studied in this paper. To calculate the average inductor current with minimum calculation and appropriate precision, a new method called as four-point-mean method is proposed. The control laws for trailing-edge modulation and leading-edge modulation are derived...
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