Patent attributes
A buck-boost switching converter which receives an input voltage and provides an output voltage is presented. The converter contains a first set of switches having a first power switch and a first ground switch, a second set of switches having a second power switch and a second ground switch. A controller is arranged to send control signals to the first and second set of switches. The controller is arranged such that in a buck mode, the first set of switches operates to provide buck regulation while the second power switch is held in a closed state. In a boost mode, the second set of switches operates to provide boost regulation while the first power switch is held in a closed state, and the controller is arranged to selectively operate the buck-boost switching converter in the buck mode or the boost mode based on a length of a time period.
