Charge pump circuit

Details Charge pump circuit Charge pump circuit

1989-09-12

1992-08-11

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072962, 307264, 307482, 36518911, 365226, H03K 301, H03K 1901

Patent

active

051381907

ABSTRACT:
A charge pump circuit including a step-up section (1) having an output point to which a load is connected, the step-up section (1 ) having a function to step up an output potential from a predetermined potential lower than a potential (V.sub.PP) of a power supply to a desired potential higher than the power supply potential (V.sub.PP), wherein the charge pump circuit comprises initial potential setting switch (N.sub.10) connected between the power supply and the output point of the step-up section (1), and operative so that it is turned on with the beginning of the step-up operation of the step-up section (1) to propagate the power supply potential (V.sub.PP) to the output point of the step-up section (1), and that it is turned off in a suitable time. With the beginning of the step-up operation of the step-up section (1), the initial potential setting switch (N.sub.10) is turned on. As a result, a power supply potential (V.sub.PP) is propagated to the output point of the step-up section (1). Thus, the output potential is initially set to a relatively high potential obtained by subtracting a voltage drop of the initial potential setting switch (N.sub.10) from the power supply potential (V.sub.PP). When the output of the step-up section (1) rises to some extent in a suitable time, the initial potential setting switch (N.sub.10) is turned off. After that, the step-up section (1) delivers a voltage to the load.

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patent: 4689495 (1987-08-01), Liu
patent: 4916334 (1990-04-01), Minagawa et al.
Fink et al., Electronics Engineers' Handbook, McGraw-Hill Book Company, pp. 16-16, 1982.
J. F. Dickson, "On-Chip High-Voltage Generation in MNOS Integrated Circuits Using an Improved Voltage Multiplier Technique", IEEE Journal of Solid-State Circuits, vol. SC-11, No. 3, Jun. 1976, pp. 374-378.

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