Patent ID: 6504421
Filing Date: 2003-01-07
Classification: G11C,H02M

Abstract:
A voltage pump configured to increase a value of an input supply potential, comprising:a first pump circuit responsive to the input supply potential and configured to generate an intermediate potential greater than the input supply potential; and a second pump circuit responsive to the input supply potential and configured to generate a boosted potential greater than the intermediate potential, the second pump circuit including: a switching device having a first terminal configured to receive the boosted potential and having a control node; a capacitor in electrical communication with the control node and configured to charge the control node to a precharge potential; a first translator portion in electrical communication with the control node and configured to increase the precharge potential by an amount substantially equal to the intermediate potential when activated; a second translator portion in electrical communication with the control node and configured to drive the potential of the control node toward a reference potential when activated; and a delay circuit in electrical communication with the second translator portion, said delay circuit configured to interpose a delay between actuation states of said first and said second translator portions.