Mos voltage elevator of the charge pump type

Details Mos voltage elevator of the charge pump type Mos voltage elevator of the charge pump type

1997-08-05

1999-02-23

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327537, 363 60, 363 61, 307110, G05F 110

Patent

active

058748504

ABSTRACT:
A charge pump MOS voltage booster has reduced voltage drops and ripple. This voltage booster is advantageously used in two applications. The voltage has four MOS transistors instead of diodes in a classical voltage booster, which exhibit an undesired voltage drop. The voltage booster also has an oscillator with two outputs and two corresponding charge transfer capacitors. In this manner, the undesired voltage drops and ripple are reduced without complicating the circuitry structure.

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patent: 4740715 (1988-04-01), Okada
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patent: 4982317 (1991-01-01), Mauthe
patent: 5093586 (1992-03-01), Asari
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patent: 5247208 (1993-09-01), Nakayama
patent: 5266842 (1993-11-01), Park
patent: 5436587 (1995-07-01), Cernea
patent: 5444362 (1995-08-01), Chung et al.
patent: 5519557 (1996-05-01), Kopera, Jr. et al.

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