Boosting charge pump circuit

Details Boosting charge pump circuit Boosting charge pump circuit

2011-06-28

2011-06-28

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S537000

Reexamination Certificate

active

07969233

ABSTRACT:
In order to resolve a problem of the conventional technique in which there is a charge pump capacitance which is not used when a boosting method of the charge pump is changed, in a charge pump circuit unit, a connection switching terminal selects a power source voltage, a logically-inverting buffer gate and a capacitor to conduct an operation of boosting the power source voltage so as to be twice the power source voltage, and a connection switching terminal outputs the boosted voltage as a boost control voltage. In a charge pump circuit unit, a connection switching terminal selects the boost control voltage outputted from the charge pump circuit unit, and a logically-inverting buffer gate and a capacitor conduct an operation of boosting the inputted voltage so as to be 3×VRD. An internal voltage is generated by outputting the boosted voltage to an internal power line via a NMOS transistor.

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patent: 2002-112532 (2002-04-01), None
patent: 2005-235315 (2006-09-01), None

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