Charge pump circuit

Details Charge pump circuit Charge pump circuit

2006-10-31

2006-10-31

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S534000

Reexamination Certificate

active

07129772

ABSTRACT:
A charge pump circuit comprises a decoder for generating a plurality of control signals, a ring oscillator an output frequency of which varies according to the plurality of the control signals, a charge pump for generating a high voltage, which is higher than an external voltage, according to an output of the ring oscillator, and a fuse tuning unit for fixing one of the plurality of the control signals.

REFERENCES:
patent: 5553030 (1996-09-01), Tedrow et al.
patent: 5952872 (1999-09-01), Hur
patent: 5999009 (1999-12-01), Mitsui
patent: 6300839 (2001-10-01), Bazargan et al.
patent: 6597235 (2003-07-01), Choi

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