Charge pump circuit

Details Charge pump circuit Charge pump circuit

1995-01-27

1997-07-22

Elms, Richard T.

Electrical transmission or interconnection systems

Capacitor

Parallel-charge, series-discharge

327306, 327536, 363 60, H02M 318

Patent

active

056506716

ABSTRACT:
A charge pump circuit including a number of pull-up stages connected in parallel with one another between a reference potential line and an output line. Each stage includes a capacitor having a first terminal connected to a charging and discharging node, and a second terminal connected to a pull-up node for switching between a first charging operating phase and a second charge transferring operating phase. The charging and discharging node is connected to the supply line via a charging transistor having a control terminal connected to a high-voltage bias node formed by the adjacent stage in the opposite operating phase, for charging the capacitor substantially up to the supply voltage.

REFERENCES:
patent: 4656369 (1987-04-01), Lou
patent: 5036229 (1991-07-01), Tran
patent: 5191232 (1993-03-01), Wang
patent: 5235222 (1993-08-01), Kondoh et al.
patent: 5412257 (1995-05-01), Cordoba et al.
Durgavich, "Switching regulator extends battery life," Electronics International 56(4):113, Feb. 1983.

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