Power Electronic Converters

6Control Design Issues in Voltage-Fed DC–DC Converters

6.1 Introduction

The voltage-fed switched-mode converters are usually applied to supply power for different electronics loads, where the transient performance requirements can be very stringent due to low supply voltages and rapidly changing load currents as in powering microcomputers and digital signal processors [1–3]. Such applications are usually based on the use of intermediate bus architectures (IBA) shown in Figure 6.1a [4], where the converters operate as voltage-output converters. Although the load transient requirements are generally stringent, a part of the converters (i.e., the bus converter) may operate even without feedback from the output voltage for reducing the costs ...