Patent ID: 7271626

Claim:
A circuit, comprising: a switched capacitor converter, including: a first transistor stage including a first control input for controlling a state of the first transistor stage, wherein the first transistor stage is arranged to selectively provide a first current path between a first node and a second node; a second transistor stage including a second control input for controlling a state of the second transistor stage, wherein the second transistor stage is arranged to selectively provide a second current path between the first node and the second node; a first buffer for driving the first control input; and a second buffer including: a first inverter having at least an input coupled to an output of the first buffer and an output; a second inverter having at least an input coupled to the output of the first inverter and an output; and a driving circuit, wherein the driving circuit has at least a first voltage supply input, a second voltage supply input, a driving control input coupled to output of the first inverter, a driving voltage input, and a driving voltage output coupled to the first control input, wherein the driving voltage output is based, at least in part, on the driving voltage input and the driving control input, and wherein the driving voltage input is distinct from the first supply voltage input and is distinct from the second supply voltage input, whereby the second transistor stage changes state an interval of time after the first transistor stage changes state.