Multiple level voltage generator for semiconductor memory device

Details Multiple level voltage generator for semiconductor memory device Multiple level voltage generator for semiconductor memory device

1997-08-20

1999-03-30

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

With voltage multiplication means

327536, H02M 725

Patent

active

058896643

ABSTRACT:
A multiple level voltage generator for a semiconductor memory device, comprising a back bias voltage charge pumping circuit for pumping charge to a back bias voltage node, a back bias voltage level detector for detecting the level of a back bias voltage at the back bias voltage node and generating first and second back bias voltage detection signals in accordance with the detected result, a high voltage charge pumping circuit for pumping charge to a high voltage node, a high voltage level detector for detecting the level of a high voltage at the high voltage node and generating first and second high voltage detection signals in accordance with the detected result, a control logic circuit for generating a control signal in response to the second back bias voltage detection signal from the back bias voltage level detector and the second high voltage detection signal from the high voltage level detector, and an oscillator for generating first and second output signals in response to the control signal from the control logic circuit, the first back bias voltage detection signal from the back bias voltage level detector and the first high voltage detection signal from the high voltage level detector and applying the generated first and second output signals to the back bias voltage charge pumping circuit and the high voltage charge pumping circuit, respectively.

REFERENCES:
patent: 4403158 (1983-09-01), Slemmer
patent: 5267201 (1993-11-01), Foss et al.
patent: 5280420 (1994-01-01), Rapp
patent: 5589793 (1996-12-01), Kassapian
patent: 5703827 (1997-12-01), Leung et al.
patent: 5796600 (1998-08-01), Yun
patent: 5818766 (1998-10-01), Song

Affiliated with

Also associated with

Rating

Multiple level voltage generator for semiconductor memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple level voltage generator for semiconductor memory device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple level voltage generator for semiconductor memory device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1220170