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:
Oct. 10, 2017
Filed:
Feb. 12, 2016
Renesas Electronics Corporation, Tokyo, JP;
Mitsuya Fukazawa, Tokyo, JP;
Kenji Furusawa, Tokyo, JP;
Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;
Abstract
A reference voltage generating circuit including a bandgap reference circuit generating a bandgap reference voltage, and a filter circuit smoothing the bandgap reference voltage. The bandgap reference circuit is configured to generate the bandgap reference voltage having a first voltage value when a clock signal is in a first logic level, and to generate the bandgap reference voltage having a second voltage value when the clock signal is in a second logic level. The filter circuit includes a first capacitive element charged with the bandgap reference voltage having the first voltage value in the first clock cycle, a second capacitive element charged with the bandgap reference voltage having the second voltage value in the first clock cycle, a third capacitive element charged with the bandgap reference voltage, and a fourth capacitive element.