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.
Patent No.:
Date of Patent:
Aug. 17, 2004
Filed:
Sep. 20, 2002
Renesas Technology Corp., Tokyo, JP;
Abstract
The internal power-supply potential generating circuit includes a reference potential generating circuit having small dependency on an external power-supply potential and on a temperature, an MOS transistor for pull up, a level shifter producing a potential lower than a reference potential by a prescribed voltage to a first node and producing a potential lower than an internal power-supply potential by a voltage of the sum of the prescribed potential and an offset potential to a second node, and a differential amplifier bringing an MOS transistor out of conduction in response to the potential of the second node reaching the potential of the first node. Thus, the reference potential may be set lower by the offset voltage, allowing stable reference potential and internal power-supply potential to be obtained even if the external power-supply potential is lowered.