Patent ID: 8339183

Claim:
A charge pump circuit, comprising: a boosting section having a first branch receiving a first clock signal and providing a first output signal at a first output node and a second branch receiving a second clock signal and providing a second output signal at a second node, wherein the first and second output signals are of opposite phase so that the first output signal falls while the second output signal rises and the first output signal rises while the second output signal falls; a charge sharing circuit connected between the first and second nodes, wherein the charge sharing circuit is active when either the first or second clock signal is falling; a charge sharing circuit connected between the first and second output nodes, wherein the charge sharing circuit-connects the first and second output nodes when either the first or second output signal is falling; a first clock driver circuit connected receive an input clock signal and generate therefrom the first and second clock signals; a second clock driver circuit connected to receive the first and second clock signals and generate therefrom a third clock signal; and a clock boosting circuit connected to receive the third clock signal and generate therefrom a boosted form of third clock signal, wherein the charge sharing circuit is connected to receive the boosted form of the third clock signal and is active when the boosted form of the third clock signal is asserted.