Patent ID: 9570976
Date: 2017-02-14
CPC Classifications: H02M,H05B,Y02B

Claim:
1. A switched capacitor power converter comprising a set of at least two capacitors; an input for receiving an input voltage an output for outputting an output voltage different to the input voltage, a plurality of switches configured to arrange the set of capacitors into a plurality of different subcircuit arrangements between the input and output for converting the input voltage to the output voltage; wherein the set of capacitors is configured to adopt a first subcircuit arrangement in which the set is connected to the input, a second subcircuit arrangement different to the first subcircuit arrangement and a third subcircuit arrangement, different to the first and second arrangements, in which the set is connected to the output, the subcircuit arrangements configured such that each of the capacitors in the set acts as a floating capacitor; and wherein the set comprises three capacitors and the subcircuit arrangements are configured such that only one of the three capacitors is charged to a voltage greater than the input voltage.