The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 28, 2006

Filed:

Jun. 30, 2004
Applicants:

Hyun-sun MO, Seoul, KR;

Sang-ki Hwang, Sungnam-si, KR;

Inventors:

Hyun-Sun Mo, Seoul, KR;

Sang-Ki Hwang, Sungnam-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided an internal voltage generating circuit that reliably supplies a constant internal voltage to the interior of a semiconductor device without regard to an external voltage, where the internal voltage generating circuit compares a first reference voltage with a first internal voltage fed back to generate the first internal voltage following the first reference voltage, receives the first internal voltage to generate a second reference voltage which is more insensitive to fluctuation of the external voltage than the first reference voltage, and compares the second reference voltage with a second internal voltage fed back to generate the second internal voltage which follows the second reference voltage and has a variation gradient smaller than that of the first internal voltage when the external voltage is changed, thereby supplying the second internal voltage to a circuit requiring stabilized internal voltage, which is obtained to increase stability and durability of the operation of the semiconductor device.


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