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:
Jun. 07, 2011
Filed:
Oct. 06, 2009
Hiroaki Wada, Tokyo, JP;
Kazuhiro Kurihara, Tokyo, JP;
Hiroaki Wada, Tokyo, JP;
Kazuhiro Kurihara, Tokyo, JP;
Spansion LLC, Sunnyvale, CA (US);
Abstract
The present invention is a semiconductor device including: a resistor R(first resistor part) and an FET(second resistor part) connected in series between a power supply Vcc (first power supply) and ground (second power supply); an output node Nprovided between the resistor Rand FETand used for outputting a reference voltage; a feedback node Nprovided between the power supply Vcc and the ground; and a voltage control circuit () that maintains a voltage of the feedback node Nat a constant level by using the reference voltage of the output node Nand the voltage of the feedback node N. The present invention can provide a semiconductor device having a reference voltage generating circuit capable of generating the reference voltage that does not greatly depend on a power supply voltage and its control method.