Patent ID: 6225854
Filing Date: 2001-05-01
Classification: G11C,H02M

Abstract:
A circuit for generating a boosted voltage from a power supply voltage, the circuit comprising:a power line for transferring the boosted voltage;an oscillation circuit for generating an oscillation signal;first boosted voltage generating means for pumping charge by use of the power supply voltage and the oscillation signal to supply a first charge-pumped voltage to the power line during a first half-cycle of the oscillation signal, wherein the first boosted voltage generating means comprises first precharge means and first pumping means; andsecond boosted voltage generating means for pumping charge by use of the power supply voltage and the oscillation signal to supply a second charge-pumped voltage to the power line during a second half-cycle of the oscillation signal, wherein the second boosted voltage generating means comprises second precharge means and second pumping means;wherein the second precharge means utilizes a precharge voltage which is pumped by the first precharge means.