Ramp-up rate control circuit for flash memory charge pump

Details Ramp-up rate control circuit for flash memory charge pump Ramp-up rate control circuit for flash memory charge pump

1996-10-21

1999-02-16

Nguyen, Viet Q.

Static information storage and retrieval

Floating gate

Particular biasing

36518518, 365203, 365204, 327536, H03F 316, H03L 700

Patent

active

058727337

ABSTRACT:
An apparatus for controlling the ramp-up rate of a charge pump having an output providing an output voltage and an output current. In one embodiment, the apparatus comprises a current bleeder circuit having an input, an output adapted for connection to ground potential and at least one transistor having a gate, source, drain and body and defining at least one current path between the source and drain to form a current path between the input and output. The body is adapted for connection to the charge pump output. The apparatus further comprises a control circuit having an input adapted for connection to the charge pump output and an output connected to the bleeder circuit input. The control circuit provides a voltage potential to the input of the current bleeder circuit to control the gate-to-source voltage of the current bleeder circuit transistor. The flow of current through the current path of the current bleeder path is a function of the magnitude of the charge pump output and the gate-to-source voltage of the bleeder circuit transistor. Other embodiments of the apparatus of the present invention are described herein.

REFERENCES:
patent: 2873387 (1959-02-01), Kidd
patent: 3321642 (1967-05-01), Peterson
patent: 3369129 (1968-02-01), Wolterman
patent: 3403265 (1968-09-01), Apfelbeck
patent: 3535549 (1970-10-01), Herrero
patent: 3603811 (1971-09-01), Day et al.
patent: 3878403 (1975-04-01), Willite et al.
patent: 3946251 (1976-03-01), Kawagoe
patent: 4326134 (1982-04-01), Owen et al.
patent: 4488060 (1984-12-01), Simko
patent: 4739282 (1988-04-01), Scheinberg
patent: 4958093 (1990-09-01), Kosson et al.
patent: 5041889 (1991-08-01), Kriedt et al.
patent: 5075572 (1991-12-01), Poteet et al.
patent: 5120668 (1992-06-01), Hsu et al.
patent: 5157289 (1992-10-01), Vasile
patent: 5172409 (1992-12-01), Susak
patent: 5182468 (1993-01-01), Erdelyi et al.
patent: 5233314 (1993-08-01), McDermott et al.
patent: 5234535 (1993-08-01), Beyer et al.
patent: 5247241 (1993-09-01), Ueda
patent: 5258318 (1993-11-01), Buti et al.
patent: 5276338 (1994-01-01), Beyer et al.
patent: 5359299 (1994-10-01), Webster
patent: 5365121 (1994-11-01), Morton et al.
patent: 5391510 (1995-02-01), Hsu et al.
patent: 5405795 (1995-04-01), Beyer et al.
patent: 5459437 (1995-10-01), Campbell
patent: 5466625 (1995-11-01), Hsieh et al.
patent: 5484738 (1996-01-01), Chu et al.
patent: 5521399 (1996-05-01), Chu et al.
patent: 5528062 (1996-06-01), Hsieh et al.
patent: 5561385 (1996-10-01), Choi
patent: 5567533 (1996-10-01), Hsu et al.
patent: 5573964 (1996-11-01), Hsu et al.
patent: 5599725 (1997-02-01), Dorleans et al.
patent: 5622881 (1997-04-01), Acocella et al.
patent: 5633522 (1997-05-01), Dorleans et al.
patent: 5643813 (1997-07-01), Acocella et al.
patent: 5663578 (1997-09-01), Hsu et al.
patent: 5675164 (1997-10-01), Brunner et al.
patent: 5689127 (1997-11-01), Chu et al.
patent: 5729039 (1998-03-01), Beyer et al.
patent: 5736891 (1998-04-01), Buti et al.
patent: 5753525 (1998-05-01), Hsu et al.
patent: 5759907 (1998-06-01), Assaderaghi et al.
"A Quick Boosting Charge Pump Circuit for High Density and Low Voltage Flash Memories", Tanzawa et al., 1994.

Affiliated with

Also associated with

Rating

Ramp-up rate control circuit for flash memory 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 Ramp-up rate control circuit for flash memory charge pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ramp-up rate control circuit for flash memory charge pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2067978