Integrated charge pump voltage booster

Details Integrated charge pump voltage booster Integrated charge pump voltage booster

2005-09-13

2005-09-13

Cunningham, Terry D. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S537000, C363S060000

Reexamination Certificate

active

06943615

ABSTRACT:
The charge pump uses PMOS transistors for implementing the first and the second charge transfer switches of the charge pump. Substantially, the closing and opening of the first switch through which the first capacitor is charged, of the second switch for transferring the electric charge from the first capacitor to the load capacitance connected to the output node of the circuit and of the third switch for discharging to ground the load capacitance, are driven by a logic NOR gate. A first input of the NOR gate is connected to a common control node of the PMOS transistor forming the second switch and of a NMOS transistor forming the third switch, a second inverting input is connected to the output node, and the output is connected to the first capacitor.

REFERENCES:
patent: 5801577 (1998-09-01), Tailliet
patent: 6255896 (2001-07-01), Li et al.
patent: 6268761 (2001-07-01), Naganawa
patent: 6356137 (2002-03-01), Roohparvar et al.
patent: 6356469 (2002-03-01), Roohparvar et al.
patent: 6366158 (2002-04-01), Zeng et al.

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