Patent ID: 6384672
Filing Date: 2002-05-07
Classification: G05F

Abstract:
A dual internal voltage generating apparatus comprising;a reference potential generating means for generating a reference voltage having a predetermined potential level; a first and a second potential amplifying means, parallel to each other, for amplifying the reference voltage; a first reference potential converting means for converting the reference voltage to a first potential level by comparing a first bias voltage generated at a corresponding power voltage detector with the output voltage from the first potential amplifying means; a second reference potential converting means for converting the reference voltage to a second potential level by comparing a second bias voltage generated at a corresponding power voltage detector with the output voltage from the second potential amplifying means; a first driver means receiving the reference voltage generated at the first reference potential converting means for generating a first internal voltage to be supplied to a peripheral circuit means within a DRAM; and a second driver means receiving the reference voltage generated at the second reference potential converting means for generating a second internal voltage to be supplied to a core circuit means within the DRAM.