Buck boost converter
Buck boost converter A Buck-Boost converter is a type of DC-DC converter that can both step up and step down a DC voltage. It is also called an inverting regulator. The buck-boost converter is widely used in applications where the input voltage may vary widely, such as battery-operated devices. The operation of a Buck-Boost converter can be divided into two modes: Buck mode and Boost mode. In Buck mode, the input voltage is higher than the output voltage. The converter operates by turning on a switch (typically a MOSFET) to allow current to flow from the input source through an inductor to the output load. The inductor stores energy during the switch-on time and releases it to the output load during the switch-off time. The output voltage is determined by the ratio of the on-time to the off-time of the switch. In Boost mode, the input voltage is lower than the output voltage. The converter operates by charging an inductor with current from the input source during the switch-on time.