Comprehensive analysis and design of a switched‐inductor type low inductance‐requirement DC‐DC buck‐boost converter for low power applications

Abstract This paper aims to comprehensively analyze, critically discuss, and provide a step‐by‐step design guideline for previously proposed Modified Switched‐Inductor type Buck‐Boost (MSIBB) converter which is based on boost converter. The MSIBB originally switched‐inductor phenomena whereby two inductors are switched in proper sequence ensure appreciable buck as well characteristics. Appreciable characteristics desirable specifically low power applications. In regulated applications, DC‐DC switching converters undergo frequent mode‐shift from boost, vice versa. At the overlap between input/output voltage, efficiency does not suffer significantly, but wide input‐voltage operating area compels operate at extreme values of duty cycle, that is, close 0 1, causes lower efficiency. A high‐efficiency required low‐power applications can voltage step‐up step‐down without resorting duty‐cycle. this perspective, switched‐inductors converter, termed was proposed. exhibits voltage‐gain, experiences lesser current/voltage stress semiconductor components. particular, it has comparable Maximum Switch Stress Factor generally translates alleviated switch conduction losses. Besides, minimum peak stored energy comparatively lower, reflecting reduced physical size onboard losses, therefore better caters Detailed analysis approach example, comparative carried out, besides providing some experimental results