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:
Mar. 15, 2016

Filed:

Nov. 05, 2013
Applicant:

Renesas Electronics Corporation, Kawasaki, JP;

Inventors:

Mitsuya Fukazawa, Kawasaki, JP;

Kenji Furusawa, Kawasaki, JP;

Assignee:

Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/30 (2006.01); G05F 3/20 (2006.01);
U.S. Cl.
CPC ...
G05F 3/30 (2013.01); G05F 3/20 (2013.01);
Abstract

A BGR circuit controls a switch circuit in synchronization with a clock signal from a control signal generating circuit and an inverted signal thereof, and thereby, alternately switches between a differential input terminal receiving a voltage VIM and a differential input terminal receiving a voltage VIP. An LPF circuit includes capacitive elements, a switch connected between an input node and each capacitive element, and a switch connected between an output node and each capacitive element. The LPF circuit controls ON/OFF of the switches in synchronization with a clock signal CLK, and thereby, calculates a moving average value of an output voltage of the BGR circuit in the most recent one clock cycle.


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