Low voltage charge pumps using p-well driven MOS capacitors

Details Low voltage charge pumps using p-well driven MOS capacitors Low voltage charge pumps using p-well driven MOS capacitors

1993-08-11

1995-01-31

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327390, 327534, 327589, H03K 301, H03K 1901

Patent

active

053861515

ABSTRACT:
A low voltage charge pump operable with a low voltage power supply and a clock signal is provided for delivering a final output voltage which is higher than the supply voltage. The low voltage charge pump comprises MOS capacitors formed of MOS devices, each capacitor including a p-well acting as a plate of the respective capacitor. Through this arrangement, the effective area of the capacitor is increased resulting in an increase in capacitance. Therefore, a more efficient charge pumping effect is provided in a low voltage power supply such as 3.3 volts. The p-well of each of the capacitor is driven from ground voltage to one threshold voltage less than the supply voltage to minimize forward bias of the p-wells and the n-type substrates of the MOS devices.

REFERENCES:
patent: 3983414 (1976-09-01), Stafford et al.
patent: 5008799 (1991-04-01), Montalvo
patent: 5059815 (1991-10-01), Bill et al.
patent: 5075571 (1991-12-01), Dhong et al.
patent: 5172013 (1992-12-01), Matsumura
IEEE Journal of Solid State Circuits vol. SC.11, No. 3, Jun. 1976 (attached) pp. 374-378, Dickson, "On Chip High Voltage Generation in MNOS Integrated Circuits Using An Improved Voltage Multiplier Technique".

Affiliated with

Also associated with

Rating

Low voltage charge pumps using p-well driven MOS capacitors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low voltage charge pumps using p-well driven MOS capacitors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low voltage charge pumps using p-well driven MOS capacitors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1104342