Split-pi topology

In electronics, a split-pi topology is a pattern of component interconnections used in a kind of power converter that can theoretically produce an arbitrary output voltage, either higher or lower than the input voltage.

The topology and use of MOSFETs make it inherently bi-directional which lends itself to applications requiring regenerative braking.

The split-pi converter is a type of DC-to-DC converter that has an output voltage magnitude either greater than or less than the input voltage magnitude.

In typical operation where a source voltage is located at the left-hand side input terminals, the left-hand bridge operates as a boost converter and the right-hand bridge operates as a buck converter.

The output voltage is adjustable based on the duty cycle of the switching MOSFET bridge.

Schematic of split-pi converter topology