Disk processing apparatus with voltage generating circuit...

Details Disk processing apparatus with voltage generating circuit... Disk processing apparatus with voltage generating circuit...

2007-06-26

2008-08-12

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185280, C365S233100

Reexamination Certificate

active

07411831

ABSTRACT:
The present invention is directed to largely reduce peak current at the time of operation of a boosting circuit provided for an EEPROM. In the erase/write operation, first, a low-frequency clock signal as a selection clock signal is input by a low-frequency clock control signal to a charge pump. After lapse of a certain period (about ⅓ of fall time), a high-frequency clock signal having a frequency higher than that of the low-frequency clock signal is output by a high-frequency clock control signal and is input as the selection clock signal to the charge pump to boost a voltage to a predetermined voltage level. In such a manner, while suppressing the peak of consumption current, the fall time of the boosted voltage can be shortened.

REFERENCES:
patent: 5881012 (1999-03-01), Kawasaki et al.
patent: 6535435 (2003-03-01), Tanaka et al.
patent: 6560145 (2003-05-01), Martines et al.
patent: 6567313 (2003-05-01), Tanaka et al.
patent: 6791884 (2004-09-01), Matsuda et al.
patent: 2002-109894 (2002-04-01), None
patent: WO 02/19342 (2002-03-01), None

Affiliated with

Also associated with

Rating

Disk processing apparatus with voltage generating circuit... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk processing apparatus with voltage generating circuit..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk processing apparatus with voltage generating circuit... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4013398