公开(公告)号：DE3787080D1

公开(公告)日：1993-09-23

申请号：DE3787080

申请日：1987-10-31

Applicant: IBM

Inventor： CRANFORD HAYDEN CLAY ,  GARVIN STACY JEAN ,  HODGIN WENDY KAY ,  MULLEN JOHN MARK

IPC: H01L21/8247 ,  G11C5/14 ,  G11C16/06 ,  G11C16/30 ,  G11C17/00 ,  H01L21/822 ,  H01L27/04 ,  H01L29/788 ,  H01L29/792 ,  H02M3/00 ,  H02M3/07 ,  H03K5/00

Abstract: On-chip multi-level voltage generating system comprising charge pump circuit means (26) responsive to a low voltage for supplying multiple voltages on a high voltage output, a plurality of selectable feedback paths connected to the output of said charge pump circuit means (26) with each feedback path controlling the charge pump circuit means to output a selected voltage level, and charge pump control means (28) coupled to a drive input (30) of the charge pump circuit means (26) and in series with each feedback path, and being responsive to enabling signals to activate the feedback path corresponding to the selected voltage level.

公开(公告)号：DE3787080T2

公开(公告)日：1994-03-17

申请号：DE3787080

申请日：1987-10-31

Applicant: IBM

Inventor： CRANFORD HAYDEN CLAY ,  GARVIN STACY JEAN ,  HODGIN WENDY KAY ,  MULLEN JOHN MARK

IPC: H01L21/8247 ,  G11C5/14 ,  G11C16/06 ,  G11C16/30 ,  G11C17/00 ,  H01L21/822 ,  H01L27/04 ,  H01L29/788 ,  H01L29/792 ,  H02M3/00 ,  H02M3/07 ,  H03K5/00

Abstract: On-chip multi-level voltage generating system comprising charge pump circuit means (26) responsive to a low voltage for supplying multiple voltages on a high voltage output, a plurality of selectable feedback paths connected to the output of said charge pump circuit means (26) with each feedback path controlling the charge pump circuit means to output a selected voltage level, and charge pump control means (28) coupled to a drive input (30) of the charge pump circuit means (26) and in series with each feedback path, and being responsive to enabling signals to activate the feedback path corresponding to the selected voltage level.