Patent ID: 7439793

Claim:
A charge pump circuit including a plurality of charge pump cells, at least one of the plurality of charge pump cells comprising: a first output node for transferring charge; a first pumping node for receiving a pumping clock signal; a first capacitor connected between the first output node and the first pumping node, for storing the charge, and repeating a charge, discharge or pre-charge operation in response to a plurality of pumping clock signals; a first transistor connected between the first output node and a second output node, the first transistor selectively activating and deactivating in response to a first clock signal; a first transistor connection selectively connecting the first clock signal to the second output node, the transistor connection selectively activating and deactivating in response to at least a second clock signal; and a second transistor connection selectively connecting the second clock signal to the second output node, the transistor connection selectively activating and deactivating in response to at least the second clock signal.