System Solution Guide: Switched-Mode Power Supply (SMPS)

Switched-Mode Power Supplies (SMPS) enable efficient power conversion across a wide range of applications, using advanced components like SiC and GaN to improve performance and meet global energy standards. This solution guide covers key topologies, conduction modes, market trends, and offers detailed block diagrams to support system-level design. It also highlights recommended onsemi devices and tools like WebDesigner+ and the Elite Power Simulator to streamline development of next-generation SMPS systems.

Guide Overview

Switched-Mode Power Supplies (SMPS) are essential for delivering high-efficiency power conversion in a wide range of applications—from compact USB-C chargers to large-scale data centers. These systems utilize advanced topologies and components to regulate voltage and current efficiently, while meeting global energy standards. Key technologies include wide-bandgap semiconductors like silicon carbide (SiC) and gallium nitride (GaN), which allow for higher switching frequencies and improved power density.

This solution guide provides you a comprehensive resource for designing modern SMPS systems. You’ll explore key power stages such as power factor correction (PFC) and DC-DC conversion, while learning about market trends, regulatory requirements, and emerging topologies like totem-pole PFC and LLC resonant converters.

The guide offers practical information on different SMPS modes (CCM, CrM, DCM), component selection, and EMI optimization. It includes detailed system block diagrams for various converter types—flyback, active clamp, and full-bridge LLC—along with recommended onsemi devices, evaluation boards, and design tools like WebDesigner+ and the Elite Power Simulator. Download this solution guide to get everything you need to create your next-generation power supply design.