Voltage reducing circuit

Details Voltage reducing circuit Voltage reducing circuit

1993-06-08

1994-05-03

Wambach, Margaret Rose

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

3072964, 3072968, 323313, 323315, 323353, H03K 301, G05F 316, G05B 2402

Patent

active

053090403

ABSTRACT:
In a semiconductor integrated circuit for taking in an external power source voltage from outside the semiconductor chip, the external power source voltage is dropped by a voltage dropping unit installed inside the semiconductor chip and the external power source voltage in the semiconductor integrated circuit, as dropped is supplied as an internal power source voltage to the semiconductor chip and used as the internal power source voltage, a plurality of voltage dropping units are installed for each of a plurality of semiconductor circuit block installed inside the semiconductor chip, and the voltage fluctuation of an internal power source is effectively suppressed in the event that a circuit consuming a very high current is operated.

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patent: 5001362 (1991-03-01), Tran
patent: 5079441 (1992-01-01), Scott
IBM Tech. Disc. Bul. "Switchable High-Voltage Supply" Greerson et al. vol. 11, No. 11 Apr. 1969.
T. Furuyama et al, "A New On-chip Voltage Converter for Submicrometer High-Density DRAM's", IEEE Journal of Solid-State Circuits, vol. 22, No. 3, Jun. 1987, pp. 437-441.
Patent Abstracts of Japan, vol. 012, No. 043 (P-664) Feb. 9, 1988, abstract.
Supplementary European Search Report.

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