Merged charge pump

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C363S059000

Reexamination Certificate

active

06980045

ABSTRACT:
A charge pump circuit for generating various pumped voltages includes a first charge pump including a plurality of first charge pump stages responsive to a first set of clock signals and having threshold voltage cancellation circuitry, a second charge pump including a plurality of second charge pump stages responsive to a second set of clock signals different from the first clock signals, and a switching circuit configured to selectively connect the second charge pump in series between the first charge pump and a voltage rail in response to a mode signal (MODE). For some embodiments, a plurality of the charge pump circuits can be selectively connected in parallel in response to corresponding select signals to generate various drive currents.

REFERENCES:
patent: 5732039 (1998-03-01), Javanifard et al.
patent: 5754476 (1998-05-01), Caser et al.
patent: 5767735 (1998-06-01), Javanifard et al.
patent: 6121821 (2000-09-01), Miki
patent: 6151229 (2000-11-01), Taub et al.
patent: 6369642 (2002-04-01), Zeng
patent: 2004/0095806 (2004-05-01), Osawa et al.
Tanzawa, Toru et al.; “Circuit Techniques for a 1.8-V-Only NAND Flash Memory,” IEEE Journal of Solid-State Circuits, Jan. 2002, vol. 37, No. 1, IEEE, 3 Park Avenue, 17th Floor, New York, NY 10016-5997, pp. 84-89.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Merged charge pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Merged charge pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Merged charge pump will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3484912

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.