Patent ID: 9203299
Filing Date: 2015-12-01
Classification: H02M

Abstract:
1. An apparatus for converting a first voltage into a second voltage, said apparatus comprising a reconfigurable switched capacitor power converter having a selectable conversion gain, said reconfigurable switched capacitor power converter comprising a plurality of switch elements configured to electrically interconnect capacitors to one another and/or to the first or second voltage in successive states, wherein said switch elements are configured to interconnect at least some capacitors to one another through the switch elements, a controller for causing said reconfigurable switched capacitor power converter to transition between a first mode of operation and a second mode of operation, said controller being configured to minimize electrical transients arising from transition from said first mode to said second mode, whereby in said first mode of operation, said reconfigurable switched capacitor power converter operates with a first conversion gain and in said second mode of operation, said reconfigurable switched capacitor power converter operates with a second conversion gain, wherein said controller is configured to minimize electrical transients by, during a transition period following cessation of operation in said first mode and prior to commencement of operation in said second mode, slewing voltages across at least one of said capacitors toward values that said capacitors would reach during said second mode.