Voltage generating device generating a voltage at a constant lev

Details Voltage generating device generating a voltage at a constant lev Voltage generating device generating a voltage at a constant lev

1992-09-30

1994-01-04

LaRoche, Eugene R.

Static information storage and retrieval

Powering

307268, G11C 514

Patent

active

052766519

ABSTRACT:
A circuit of a structure in which one end of a serial connection circuit of two capacitors is grounded, and the potential of another end is switched in a constant cycle is disclosed as a voltage generating circuit applicable to a half Vcc generating circuit, a substrate bias circuit, or the like. Electrical connection between a connection point between the capacitors and a predetermined load and electrical connection between the connection point and ground are controlled so that the potential of the connection point attains to be a constant potential in accordance with the ratio between the capacitance of the two capacitors in response to switching of the potential of the "another end" to a predetermined potential. As a result, a half Vcc generating circuit with reduced power consumption and layout area and a substrate bias circuit capable of biasing a semiconductor substrate to an arbitrary potential are realized.

REFERENCES:
patent: 4801887 (1989-01-01), Wegener
patent: 4812735 (1989-03-01), Sawada et al.
patent: 5175706 (1992-12-01), Edme

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