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:
Mar. 02, 2004
Filed:
Sep. 12, 2002
Hiroshi Tachimori, Tokyo, JP;
Sony Corporation, , JP;
Abstract
The present invention provides a reference voltage generator capable of operating stably at a low power source voltage, suppressing the increase of a current consumption and providing a stable reference voltage at a high power source voltage, and reducing a layout area. A pMOS transistor, a resistance element, an nMOS transistor, a resistance element and an nMOS transistor are connected in series between a supply line of a power source voltage and a common potential line. The transistors are low threshold voltage transistors, all the transistors are rendered conductive during operation, in the low range of the power source voltage, transistor currents are determined by ON resistances of the transistors, while in the high range of the power source voltage, the transistor currents are determined by the resistance values of the resistance elements, hence it is possible to provide a stable reference voltage at the low power source voltage while suppressing the rapid increase of the current consumption at the high power source voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile