Switched capacitor voltage converter circuit with a hierarchical switch network

Abstract

Techniques and mechanisms for generating an output voltage with a switched capacitor voltage converter (SCVR). In an embodiment, the SCVR comprises converter cores which are coupled in parallel via multiple buses including a first bus, which is to receive an input voltage, and a second bus with which the SCVR is to provide the output voltage based on the input voltage. A first converter core comprises a capacitor and a first hierarchical switch network (HSN) which is coupled between the capacitor and the multiple buses. The first HSN switchedly provides any of multiple conductive paths each between the capacitor and a different respective one of the multiple buses. Two or more of the conductive paths are each provided with at least one same switch circuit of the first HSN. In another embodiment, the first converter core comprises two HSNs which each have a respective branching tree topology.