Switching regulator based on a high‐voltage gain DC–DC converter with non‐pulsating input/output currents

Abstract

In recent years, new technological advances are requiring the use of direct current (DC)-DC switching converters with higher conversion ratios between input and output voltages. Additionally, the desirable characteristics of the converters are non-pulsating input and output currents as well as a reduced voltage stress on the switching devices. In this work, a control strategy is proposed for the high-voltage gain converter to regulate the output voltage. The steady-state operating conditions are discussed as well as the bilinear switching, non-linear averaged, and linear averaged models. The transfer functions of variables to be used for control purposes are analysed too. Experimental results for a 300 W switching regulator with 97% conversion efficiency are given to validate the controller design procedure.

Control Scheme for a Quadratic-Based Step-Down On-Board DC/DC Converter to Be Used in Hybrid Electric Vehicles

“…Therefore, attention should be taken to satisfy the inequalities given in Equation (25). Once the impedance of the input filter has been ensured, the controller for the QCIF can be designed.…”

“…After the steady-state expressions and the dynamic models have been obtained, an analysis by linearization and control methods still needs to be carried out. As mentioned, one of the major problems of the conventional buck converter is the pulsating input current; this represents a drawback for many applications of power sources [25].…”

A high step‐up interleaved boost‐Cuk converter with integrated magnetic coupled inductors

“…The converter with switched-inductor proposed in [5,6] improved the voltage gain by charging in parallel and discharging in series with two inductors in the switched-inductor. The converter proposed in [7][8][9] cascades the switched-capacitor into the conventional converter to improve the voltage gain of the converter by adding multiple energy storage capacitors. Switched-inductor and switchedcapacitor can be combined with each other to increase the voltage gain of the converter [10,11].…”