What are the common switching regulator topologies?
Switching regulators are configured into specific topologies, for achieving different types of voltage or power conversion. Many of these topologies can be seen in power supply solutions developed in the WEBENCH Power Designer online design environment. The most common topologies are these: • Buck: Used to reduce a DC voltage to a lower DC voltage. • Boost: Provides an output voltage that is higher than the input. • Buck-Boost (inverting): an output voltage is generated opposite in polarity to the input. • Flyback: Uses a transformer to generate an output voltage that is less than or greater than the input, as well as multiple outputs. • Sepic: A two-switch, two-inductor converter that produces an output voltage that can be either greater than or less than the input voltage. Sepic converters are often described as offering a noninverting buck-boost converter function. Many other topologies have been developed for high-power conversion, or other less common conversion requirements. Thes
